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Removal of Chromium Ions from Water Using Eco-friendly Based Adsorbents

  • Karthik RathinamEmail author
  • Swatantra Pratap SinghEmail author
Chapter
  • 318 Downloads
Part of the Energy, Environment, and Sustainability book series (ENENSU)

Abstract

In recent years, individual access to clean water becomes one of the most critical challenges around the world owing to the presence of various toxic pollutants in water. Chromium is one of the important heavy metal pollutants and posing significant threat to human beings due to its severe adverse effects. Because of its potential adverse effects on humans and other species, remediation becomes an absolute necessity. Whilst many techniques have been reported for the removal of chromium ions from polluted water, adsorption-based technologies gained more consideration as being inexpensive, simple, easy handling, etc. Furthermore, bio-based adsorbents are being extensively studied over other adsorbents for the removal of chromium due to their excellent adsorption capability, non-toxicity, biodegradability and availability. Therefore, the foremost aim of this chapter is to review the various bio-based adsorbents used for the removal of chromium ions from polluted water.

Keywords

Chromium Biopolymers Eco-friendly Adsorption 

References

  1. Abou El-Reash YG, Otto M, Kenawy IM, Ouf AM (2011) Adsorption of Cr(VI) and As(V) ions by modified magnetic chitosan chelating resin. Int J Biol Macromolecules 49(4):513–522.  https://doi.org/10.1016/j.ijbiomac.2011.06.001CrossRefGoogle Scholar
  2. Ahmad R, Hasan I, Mittal A (2017) Adsorption of Cr (VI) and Cd (II) on chitosan grafted polyaniline-OMMT nanocomposite: isotherms, kinetics and thermodynamics studies. Desalin Water Treat 58:144–153CrossRefGoogle Scholar
  3. Ali MEA (2018) Synthesis and adsorption properties of chitosan-CDTA-GO nanocomposite for removal of hexavalent chromium from aqueous solutions. Arab J Chem 11(7):1107–1116.  https://doi.org/10.1016/j.arabjc.2016.09.010CrossRefGoogle Scholar
  4. Anirudhan TS, Nima J, Divya PL (2013) Adsorption of chromium(VI) from aqueous solutions by glycidylmethacrylate-grafted-densified cellulose with quaternary ammonium groups. Appl Surf Sci 279:441–449.  https://doi.org/10.1016/j.apsusc.2013.04.134CrossRefGoogle Scholar
  5. Ba S, Alagui A, Hajjaji M (2018) Retention and release of hexavalent and trivalent chromium by chitosan, olive stone activated carbon, and their blend. Environ Sci Pollut Res 25(20):19585–19604.  https://doi.org/10.1007/s11356-018-2196-7CrossRefGoogle Scholar
  6. Barnhart J (1997) Occurrences, uses, and properties of Chromium. Regul Toxicol Pharmacol 26(1):S3–S7.  https://doi.org/10.1006/rtph.1997.1132CrossRefGoogle Scholar
  7. Beheshti H, Irani M, Hosseini L, Rahimi A, Aliabadi M (2016) Removal of Cr (VI) from aqueous solutions using chitosan/MWCNT/Fe3O4 composite nanofibers-batch and column studies. Chem Eng J 284:557–564.  https://doi.org/10.1016/j.cej.2015.08.158CrossRefGoogle Scholar
  8. Bhatt R, Sreedhar B, Padmaja P (2015) Adsorption of chromium from aqueous solutions using crosslinked chitosan–diethylenetriaminepentaacetic acid. Int J Biol Macromolecules 74:458–466.  https://doi.org/10.1016/j.ijbiomac.2014.12.041CrossRefGoogle Scholar
  9. Bhatt R, Sreedhar B, Padmaja P (2017) Chitosan supramolecularly cross linked with trimesic acid—Facile synthesis, characterization and evaluation of adsorption potential for Chromium(VI). Int J Biol Macromolecules 104:1254–1266.  https://doi.org/10.1016/j.ijbiomac.2017.06.067CrossRefGoogle Scholar
  10. Bhatt R, Ageetha V, Rathod SB, Padmaja P (2019) Self-assembled chitosan-zirconium phosphate nanostructures for adsorption of chromium and degradation of dyes. Carbohydr Polym 208:441–450.  https://doi.org/10.1016/j.carbpol.2018.12.077CrossRefGoogle Scholar
  11. Boddu VM, Abburi K, Talbott JL, Smith ED (2003) Removal of hexavalent Chromium from wastewater using a new composite Chitosan biosorbent. Environ Sci Technol 37(19):4449–4456.  https://doi.org/10.1021/es021013aCrossRefGoogle Scholar
  12. Budnyak TM, Pylypchuk IV, Tertykh VA, Yanovska ES, Kolodynska D (2015) Synthesis and adsorption properties of chitosan-silica nanocomposite prepared by sol-gel method. Nanoscale Res Lett 10:87.  https://doi.org/10.1186/s11671-014-0722-1CrossRefGoogle Scholar
  13. Cai W, Xue W, Jiang Y (2018) Facile preparation of magnetic Chitosan coprecipitated by ethanol/NH3 H2O for highly efficient removal toward Cr(VI). ACS Omega 3(5):5725–5734.  https://doi.org/10.1021/acsomega.8b00393CrossRefGoogle Scholar
  14. Cai W, Zhu F, Liang H, Jiang Y, Tu W, Cai Z, Wu J, Zhou J (2019) Preparation of thiourea-modified magnetic chitosan composite with efficient removal efficiency for Cr(VI). Chem Eng Res Des 144:150–158.  https://doi.org/10.1016/j.cherd.2019.01.031CrossRefGoogle Scholar
  15. Chauhan D, Jaiswal M, Sankararamakrishnan N (2012) Removal of Cadmium and hexavalent Chromium from electroplating waste water using thiocarbamoyl chitosan. Carbohydr Polym 88(2):670–675.  https://doi.org/10.1016/j.carbpol.2012.01.014CrossRefGoogle Scholar
  16. Chen D, Li W, Wu Y, Zhu Q, Lu Z, Du G (2013) Preparation and characterization of chitosan/montmorillonite magnetic microspheres and its application for the removal of Cr (VI). Chem Eng J 221:8–15.  https://doi.org/10.1016/j.cej.2013.01.089CrossRefGoogle Scholar
  17. Chen X, Zhang W, Luo X, Zhao F, Li Y, Li R, Li Z (2017) Efficient removal and environmentally benign detoxification of Cr(VI) in aqueous solutions by Zr(IV) cross-linking chitosan magnetic microspheres. Chemosphere 185:991–1000.  https://doi.org/10.1016/j.chemosphere.2017.07.113CrossRefGoogle Scholar
  18. Chethan PD, Vishalakshi B (2015) Synthesis of ethylenediamine modified chitosan microspheres for removal of divalent and hexavalent ions. Int J Biol Macromolecules 75:179–185.  https://doi.org/10.1016/j.ijbiomac.2015.01.032CrossRefGoogle Scholar
  19. Copello GJ, Varela F, Vivot RM, Díaz LE (2008) Immobilized chitosan as biosorbent for the removal of Cd(II), Cr(III) and Cr(VI) from aqueous solutions. Bioresour Technol 99(14):6538–6544.  https://doi.org/10.1016/j.biortech.2007.11.055CrossRefGoogle Scholar
  20. Dai J, Ren F, Tao C (2012) Adsorption of Cr(VI) and speciation of Cr(VI) and Cr(III) in aqueous solutions using chemically modified chitosan. Int J Environ Res Public Health 9(5):1757–1770.  https://doi.org/10.3390/ijerph9051757CrossRefGoogle Scholar
  21. Davarnejad R, Karimi Dastnayi Z, Kennedy JF (2018) Cr(VI) adsorption on the blends of Henna with chitosan microparticles: Experimental and statistical analysis. Int J Biol Macromolecules 116:281–288.  https://doi.org/10.1016/j.ijbiomac.2018.04.189CrossRefGoogle Scholar
  22. Demarchi CA, Debrassi A, Magro JD, Nedelko N, Ślawska-Waniewska A, Dłużewski P, Greneche J-M, Rodrigues CA (2015) Adsorption of Cr(VI) on crosslinked chitosan–Fe(III) complex in fixed-bed systems. J Water Process Eng 7:141–152.  https://doi.org/10.1016/j.jwpe.2015.05.003CrossRefGoogle Scholar
  23. Devi R, Dhamodharan R (2018) Pretreatment in hot glycerol for facile and green separation of Chitin from prawn shell waste. ACS Sustain Chem Eng 6(1):846–853.  https://doi.org/10.1021/acssuschemeng.7b03195CrossRefGoogle Scholar
  24. Dima JB, Sequeiros C, Zaritzky NE (2015) Hexavalent chromium removal in contaminated water using reticulated chitosan micro/nanoparticles from seafood processing wastes. Chemosphere 141:100–111.  https://doi.org/10.1016/j.chemosphere.2015.06.030CrossRefGoogle Scholar
  25. Dong Z, Zhao L (2018) Covalently bonded ionic liquid onto cellulose for fast adsorption and efficient separation of Cr(VI): Batch, column and mechanism investigation. Carbohydr Polym 189:190–197.  https://doi.org/10.1016/j.carbpol.2018.02.038CrossRefGoogle Scholar
  26. Dong Z, Zhao J, Du J, Li C, Zhao L (2016) Radiation synthesis of spherical cellulose-based adsorbent for efficient adsorption and detoxification of Cr(VI). Radiat Phys Chem 126:68–74.  https://doi.org/10.1016/j.radphyschem.2016.05.013CrossRefGoogle Scholar
  27. Dragan ES, Humelnicu D, Dinu MV, Olariu RI (2017) Kinetics, equilibrium modeling, and thermodynamics on removal of Cr(VI) ions from aqueous solution using novel composites with strong base anion exchanger microspheres embedded into chitosan/poly(vinyl amine) cryogels. Chem Eng J 330:675–691.  https://doi.org/10.1016/j.cej.2017.08.004CrossRefGoogle Scholar
  28. Elwakeel KZ (2010) Removal of Cr(VI) from alkaline aqueous solutions using chemically modified magnetic chitosan resins. Desalination 250(1):105–112.  https://doi.org/10.1016/j.desal.2009.02.063CrossRefGoogle Scholar
  29. EPA (1996) Test methods for evaluating solid waste. 3rd ed. Washington, DC: U.S. Environmental Protection Agency, Office of Solid Waste and Emergency Response. Method 6010B: Inductively coupled plasma-atomic emission spectrometry. SW-846Google Scholar
  30. EPA (2011) Method 218.7: Determination of hexavalent chromium in drinking water by ion chromatography with post-column derivatization and UV-visable spectroscopic detection. U.S. Environmental Protection Agency (EPA815R11005)Google Scholar
  31. EPA. Method 218.4 (Atomic absorption, chelation-extraction). Methods for chemical analysis of water and wastes. Environmental Protection Agency, Cincinnati, OH: U.S. (1983b.Chromium. EPA600479020)Google Scholar
  32. Escudero C, Fiol N, Villaescusa I, Bollinger J-C (2017) Effect of chromium speciation on its sorption mechanism onto grape stalks entrapped into alginate beads. Arab J Chem 10:S1293–S1302.  https://doi.org/10.1016/j.arabjc.2013.03.011CrossRefGoogle Scholar
  33. Fertah M (2017) Chapter 2—isolation and characterization of alginate from seaweed. In: Venkatesan J, Anil S, Kim S-K (eds) Seaweed polysaccharides. Elsevier, pp 11–26Google Scholar
  34. Gandhi MR, Meenakshi S (2012) Preparation and characterization of La(III) encapsulated silica gel/chitosan composite and its metal uptake studies. J Hazard Mater 203–204:29–37.  https://doi.org/10.1016/j.jhazmat.2011.11.062CrossRefGoogle Scholar
  35. Ge H, Ma Z (2015) Microwave preparation of triethylenetetramine modified graphene oxide/chitosan composite for adsorption of Cr(VI). Carbohydr Polym 131:280–287.  https://doi.org/10.1016/j.carbpol.2015.06.025CrossRefGoogle Scholar
  36. Gokila S, Gomathi T, Sudha PN, Anil S (2017) Removal of the heavy metal ion chromiuim(VI) using Chitosan and Alginate nanocomposites. Int J Biol Macromolecules 104:1459–1468.  https://doi.org/10.1016/j.ijbiomac.2017.05.117CrossRefGoogle Scholar
  37. Gopalakannan V, Viswanathan N (2015) Synthesis of magnetic alginate hybrid beads for efficient chromium (VI) removal. Int J Biol Macromolecules 72:862–867.  https://doi.org/10.1016/j.ijbiomac.2014.09.024CrossRefGoogle Scholar
  38. Gopalakannan V, Viswanathan N (2016) One pot synthesis of metal ion anchored alginate–gelatin binary biocomposite for efficient Cr(VI) removal. Int J Biol Macromolecules 83:450–459.  https://doi.org/10.1016/j.ijbiomac.2015.10.010CrossRefGoogle Scholar
  39. Gopalakannan V, Periyasamy S, Viswanathan N (2016a) One pot eco-friendly synthesis of highly dispersed alumina supported alginate biocomposite for efficient chromium(VI) removal. J Water Process Eng 10:113–119.  https://doi.org/10.1016/j.jwpe.2016.02.005CrossRefGoogle Scholar
  40. Gopalakannan V, Periyasamy S, Viswanathan N (2016b) Synthesis of assorted metal ions anchored alginate bentonite biocomposites for Cr(VI) sorption. Carbohydr Polym 151:1100–1109.  https://doi.org/10.1016/j.carbpol.2016.06.030CrossRefGoogle Scholar
  41. Guo D-M, An Q-D, Xiao Z-Y, Zhai S-R, Shi Z (2017) Polyethylenimine-functionalized cellulose aerogel beads for efficient dynamic removal of chromium(vi) from aqueous solution. RSC Adv 7(85):54039–54052.  https://doi.org/10.1039/C7RA09940ACrossRefGoogle Scholar
  42. Gurgel LVA, Perin de Melo JC, de Lena JC, Gil LF (2009) Adsorption of chromium (VI) ion from aqueous solution by succinylated mercerized cellulose functionalized with quaternary ammonium groups. Bioresour Technol 100(13):3214–3220.  https://doi.org/10.1016/j.biortech.2009.01.068CrossRefGoogle Scholar
  43. Hena S (2010) Removal of chromium hexavalent ion from aqueous solutions using biopolymer chitosan coated with poly 3-methyl thiophene polymer. J Hazard Mater 181(1):474–479.  https://doi.org/10.1016/j.jhazmat.2010.05.037CrossRefGoogle Scholar
  44. Hokkanen S, Bhatnagar A, Sillanpää M (2016a) A review on modification methods to cellulose-based adsorbents to improve adsorption capacity. Water Res 91:156–173.  https://doi.org/10.1016/j.watres.2016.01.008CrossRefGoogle Scholar
  45. Hokkanen S, Bhatnagar A, Repo E, Lou S, Sillanpää M (2016b) Calcium hydroxyapatite microfibrillated cellulose composite as a potential adsorbent for the removal of Cr(VI) from aqueous solution. Chem Eng J 283:445–452.  https://doi.org/10.1016/j.cej.2015.07.035CrossRefGoogle Scholar
  46. Hu P, Wang J, Huang R (2016) Simultaneous removal of Cr(VI) and Amido black 10B (AB10B) from aqueous solutions using quaternized chitosan coated bentonite. Int J Biol Macromolecules 92:694–701.  https://doi.org/10.1016/j.ijbiomac.2016.07.085CrossRefGoogle Scholar
  47. Huang G, Zhang H, Shi JX, Langrish TAG (2009) Adsorption of Chromium(VI) from aqueous solutions using cross-linked magnetic chitosan beads. Ind Eng Chem Res 48(5):2646–2651.  https://doi.org/10.1021/ie800814hCrossRefGoogle Scholar
  48. Huang Y, Lee X, Macazo FC, Grattieri M, Cai R, Minteer SD (2018) Fast and efficient removal of chromium (VI) anionic species by a reusable chitosan-modified multi-walled carbon nanotube composite. Chem Eng J 339:259–267.  https://doi.org/10.1016/j.cej.2018.01.133CrossRefGoogle Scholar
  49. Jaishankar M, Tseten T, Anbalagan N, Mathew BB, Beeregowda KN (2014) Toxicity, mechanism and health effects of some heavy metals. Interdisc Toxicol 7(2):60–72.  https://doi.org/10.2478/intox-2014-0009CrossRefGoogle Scholar
  50. Jarup L (2003) Hazards of heavy metal contamination. Br Med Bull 68:167–182CrossRefGoogle Scholar
  51. Ji J, Xiong H, Zhu Z, Li L, Huang Y, Yu X (2018) Fabrication of Polypyrrole/Chitosan nanocomposite aerogel monolith for removal of Cr(VI). J Polym Environ 26(5):1979–1985.  https://doi.org/10.1007/s10924-017-1095-1CrossRefGoogle Scholar
  52. Jiang Y, Cai W, Tu W, Zhu M (2019) Facile cross-link method to synthesize magnetic Fe3O4@SiO2–Chitosan with high adsorption capacity toward hexavalent chromium. J Chem Eng Data 64(1):226–233.  https://doi.org/10.1021/acs.jced.8b00738CrossRefGoogle Scholar
  53. Jung C, Heo J, Han J, Her N, Lee S-J, Oh J, Ryu J, Yoon Y (2013) Hexavalent chromium removal by various adsorbents: Powdered activated carbon, chitosan, and single/multi-walled carbon nanotubes. Sep Purif Technol 106:63–71.  https://doi.org/10.1016/j.seppur.2012.12.028CrossRefGoogle Scholar
  54. Kahraman HT (2017) Development of an adsorbent via chitosan nano-organoclay assembly to remove hexavalent chromium from wastewater. Int J Biol Macromolecules 94:202–209.  https://doi.org/10.1016/j.ijbiomac.2016.09.111CrossRefGoogle Scholar
  55. Kahu SS, Shekhawat A, Saravanan D, Jugade RM (2016) Two fold modified chitosan for enhanced adsorption of hexavalent chromium from simulated wastewater and industrial effluents. Carbohydr Polym 146:264–273.  https://doi.org/10.1016/j.carbpol.2016.03.041CrossRefGoogle Scholar
  56. Kalidhasan S, Gupta PA, Cholleti VR, Santhana Krishna Kumar A, Rajesh V, Rajesh N (2012) Microwave assisted solvent free green preparation and physicochemical characterization of surfactant-anchored cellulose and its relevance toward the effective adsorption of chromium. J Colloid Interface Sci 372(1):88–98.  https://doi.org/10.1016/j.jcis.2012.01.013CrossRefGoogle Scholar
  57. Kalidhasan S, Santhana KrishnaKumar A, Rajesh V, Rajesh N (2012b) Ultrasound-assisted preparation and characterization of crystalline cellulose–ionic liquid blend polymeric material: a prelude to the study of its application toward the effective adsorption of chromium. J Colloid Interface Sci 367(1):398–408.  https://doi.org/10.1016/j.jcis.2011.09.062CrossRefGoogle Scholar
  58. Kanmani P, Aravind J, Kamaraj M, Sureshbabu P, Karthikeyan S (2017) Environmental applications of chitosan and cellulosic biopolymers: a comprehensive outlook. Bioresour Technol 242:295–303.  https://doi.org/10.1016/j.biortech.2017.03.119CrossRefGoogle Scholar
  59. Kartal SN, Imamura Y (2005) Removal of copper, chromium, and arsenic from CCA-treated wood onto chitin and chitosan. Bioresour Technol 96(3):389–392.  https://doi.org/10.1016/j.biortech.2004.03.004CrossRefGoogle Scholar
  60. Karthik R, Meenakshi S (2014a) Synthesis, characterization and Cr(VI) uptake studies of polypyrrole functionalized Chitin. Synth Metals 198:181–187.  https://doi.org/10.1016/j.synthmet.2014.10.012CrossRefGoogle Scholar
  61. Karthik R, Meenakshi S (2014b) Facile synthesis of cross linked-chitosan–grafted-polyaniline composite and its Cr(VI) uptake studies. Int J Biol Macromolecules 67:210–219.  https://doi.org/10.1016/j.ijbiomac.2014.03.035CrossRefGoogle Scholar
  62. Karthik R, Meenakshi S (2015a) Adsorption study on removal of Cr(VI) ions by polyaniline composite. Desalin Water Treat 54(11):3083–3093.  https://doi.org/10.1080/19443994.2014.909330CrossRefGoogle Scholar
  63. Karthik R, Meenakshi S (2015b) Removal of Pb(II) and Cd(II) ions from aqueous solution using polyaniline grafted chitosan. Chem Eng J 263:168–177.  https://doi.org/10.1016/j.cej.2014.11.015CrossRefGoogle Scholar
  64. Karthik R, Meenakshi S (2015c) Synthesis, characterization and Cr(VI) uptake study of polyaniline coated Chitin. Int J Biol Macromolecules 72:235–242.  https://doi.org/10.1016/j.ijbiomac.2014.08.022CrossRefGoogle Scholar
  65. Karthik R, Meenakshi S (2015d) Removal of hexavalent chromium ions from aqueous solution using chitosan/polypyrrole composite. Desalin Water Treat 56(6):1587–1600.  https://doi.org/10.1080/19443994.2014.951964CrossRefGoogle Scholar
  66. Karthik R, Meenakshi S (2015e) Removal of Cr(VI) ions by adsorption onto sodium alginate-polyaniline nanofibers. Int J Biol Macromolecules 72:711–717.  https://doi.org/10.1016/j.ijbiomac.2014.09.023CrossRefGoogle Scholar
  67. Karthik R, Meenakshi S (2016) Biosorption of Pb(II) and Cd(II) ions from aqueous solution using polyaniline/chitin composite. Sep Sci Technol 51(5):733–742.  https://doi.org/10.1080/01496395.2015.1130060CrossRefGoogle Scholar
  68. Kim MK, Shanmuga Sundaram K, Anantha Iyengar G, Lee K-P (2015) A novel chitosan functional gel included with multiwall carbon nanotube and substituted polyaniline as adsorbent for efficient removal of chromium ion. Chem Eng J 267:51–64.  https://doi.org/10.1016/j.cej.2014.12.091CrossRefGoogle Scholar
  69. Kousalya GN, Gandhi MR, Meenakshi S (2010a) Preparation of modified Chitin for the removal of Chromium(VI). Bioremediat J 14(4):208–218.  https://doi.org/10.1080/10889868.2010.515136CrossRefGoogle Scholar
  70. Kousalya GN, Gandhi MR, Meenakshi S (2010b) Removal of toxic Cr(VI) ions from aqueous solution using nano-hydroxyapatite-based Chitin and Chitosan hybrid composites. Adsorpt Sci Technol 28(1):49–64.  https://doi.org/10.1260/0263-6174.28.1.49CrossRefGoogle Scholar
  71. Kousalya GN, Rajiv Gandhi M, Meenakshi S (2010c) Sorption of chromium(VI) using modified forms of chitosan beads. Int J Biol Macromolecules 47(2):308–315.  https://doi.org/10.1016/j.ijbiomac.2010.03.010CrossRefGoogle Scholar
  72. Kumar ASK, Kalidhasan S, Rajesh V, Rajesh N (2012) Application of cellulose-clay composite biosorbent toward the effective adsorption and removal of chromium from industrial wastewater. Ind Eng Chem Res 51(1):58–69.  https://doi.org/10.1021/ie201349hCrossRefGoogle Scholar
  73. Kumar R, Kim S-J, Kim K-H, Lee S-H, Park H-S, Jeon B-H (2018) Removal of hazardous hexavalent chromium from aqueous phase using zirconium oxide-immobilized alginate beads. Appl Geochem 88:113–121.  https://doi.org/10.1016/j.apgeochem.2017.04.002CrossRefGoogle Scholar
  74. Lazaridis NK, Charalambous C (2005) Sorptive removal of trivalent and hexavalent chromium from binary aqueous solutions by composite alginate–goethite beads. Water Res 39(18):4385–4396.  https://doi.org/10.1016/j.watres.2005.09.013CrossRefGoogle Scholar
  75. Lee C-G, Park J-A, Lee I, Kang J-K, Yoon S-Y, Kim S-B (2013) Preparation of magnetic alginate–layered double hydroxide composite adsorbents and removal of Cr(VI) from aqueous solution. Water Supply 13(3):846–853.  https://doi.org/10.2166/ws.2013.069CrossRefGoogle Scholar
  76. Lei Y, Qian X, Shen J, An X (2012) Integrated reductive/adsorptive detoxification of Cr(VI)-contaminated water by polypyrrole/cellulose fiber composite. Ind Eng Chem Res 51(31):10408–10415.  https://doi.org/10.1021/ie301136gCrossRefGoogle Scholar
  77. Lei Z, Zhai S, Lv J, Fan Y, An Q, Xiao Z (2015) Sodium alginate-based magnetic carbonaceous biosorbents for highly efficient Cr(vi) removal from water. RSC Adv 5(95):77932–77941.  https://doi.org/10.1039/C5RA13226FCrossRefGoogle Scholar
  78. Li H, Bi S, Liu L, Dong W, Wang X (2011) Separation and accumulation of Cu(II), Zn(II) and Cr(VI) from aqueous solution by magnetic chitosan modified with diethylenetriamine. Desalination 278(1):397–404.  https://doi.org/10.1016/j.desal.2011.05.056CrossRefGoogle Scholar
  79. Li L, Fan L, Sun M, Qiu H, Li X, Duan H, Luo C (2013) Adsorbent for chromium removal based on graphene oxide functionalized with magnetic cyclodextrin–chitosan. Colloids Surf B Biointerfaces 107:76–83.  https://doi.org/10.1016/j.colsurfb.2013.01.074CrossRefGoogle Scholar
  80. Li L, Li Y, Cao L, Yang C (2015) Enhanced Chromium (VI) adsorption using nanosized chitosan fibers tailored by electrospinning. Carbohydr Polym 125:206–213.  https://doi.org/10.1016/j.carbpol.2015.02.037CrossRefGoogle Scholar
  81. Li Z, Li T, An L, Fu P, Gao C, Zhang Z (2016a) Highly efficient Chromium(VI) adsorption with nanofibrous filter paper prepared through electrospinning chitosan/polymethylmethacrylate composite. Carbohydr Polym 137:119–126.  https://doi.org/10.1016/j.carbpol.2015.10.059CrossRefGoogle Scholar
  82. Li Z, Li T, An L, Liu H, Gu L, Zhang Z (2016b) Preparation of chitosan/polycaprolactam nanofibrous filter paper and its greatly enhanced Chromium(VI) adsorption. Colloids Surf A Physicochem Eng Aspects 494:65–73.  https://doi.org/10.1016/j.colsurfa.2016.01.021CrossRefGoogle Scholar
  83. Li K, Li P, Cai J, Xiao S, Yang H, Li A (2016c) Efficient adsorption of both methyl orange and chromium from their aqueous mixtures using a quaternary ammonium salt modified chitosan magnetic composite adsorbent. Chemosphere 154:310–318.  https://doi.org/10.1016/j.chemosphere.2016.03.100CrossRefGoogle Scholar
  84. Liang X, Fan X, Li R, Li S, Shen S, Hu D (2018) Efficient removal of Cr(VI) from water by quaternized chitin/branched polyethylenimine biosorbent with hierarchical pore structure. Bioresour Technol 250:178–184.  https://doi.org/10.1016/j.biortech.2017.10.071CrossRefGoogle Scholar
  85. Liu J, Yan M, Zhang Y-K, Du K-F (2011) Study of glutamate-modified cellulose beads for Cr(III) adsorption by response surface methodology. Ind Eng Chem Res 50(18):10784–10791.  https://doi.org/10.1021/ie200857nCrossRefGoogle Scholar
  86. Liu D, Zhu Y, Li Z, Tian D, Chen L, Chen P (2013) Chitin nanofibrils for rapid and efficient removal of metal ions from water system. Carbohydr Polym 98(1):483–489.  https://doi.org/10.1016/j.carbpol.2013.06.015CrossRefGoogle Scholar
  87. Lu J, Xu K, Yang J, Hao Y, Cheng F (2017) Nano iron oxide impregnated in chitosan bead as a highly efficient sorbent for Cr(VI) removal from water. Carbohydr Polym 173:28–36.  https://doi.org/10.1016/j.carbpol.2017.05.070CrossRefGoogle Scholar
  88. Lv X, Jiang G, Xue X, Wu D, Sheng T, Sun C, Xu X (2013) Fe0-Fe3O4 nanocomposites embedded polyvinyl alcohol/sodium alginate beads for chromium (VI) removal. J Hazard Mater 262:748–758.  https://doi.org/10.1016/j.jhazmat.2013.09.036CrossRefGoogle Scholar
  89. Lv X, Zhang Y, Fu W, Cao J, Zhang J, Ma H, Jiang G (2017) Zero-valent iron nanoparticles embedded into reduced graphene oxide-alginate beads for efficient chromium (VI) removal. J Colloid Interface Sci 506:633–643.  https://doi.org/10.1016/j.jcis.2017.07.024CrossRefGoogle Scholar
  90. Mahmoud MS, Mohamed SA (2017) Calcium alginate as an eco-friendly supporting material for Baker’s yeast strain in chromium bioremediation. HBRC J 13(3):245–254.  https://doi.org/10.1016/j.hbrcj.2015.06.003CrossRefGoogle Scholar
  91. Miretzky P, Cirelli AF (2010) Cr(VI) and Cr(III) removal from aqueous solution by raw and modified lignocellulosic materials: a review. J Hazard Mater 180(1):1–19.  https://doi.org/10.1016/j.jhazmat.2010.04.060CrossRefGoogle Scholar
  92. Moussout H, Ahlafi H, Aazza M, El Akili C (2018) Performances of local chitosan and its nanocomposite 5%Bentonite/Chitosan in the removal of chromium ions (Cr(VI)) from wastewater. Int J Biol Macromolecules 108:1063–1073.  https://doi.org/10.1016/j.ijbiomac.2017.11.018CrossRefGoogle Scholar
  93. Neto JDOM, Bellato CR, de Castro Silva D (2019) Iron oxide/carbon nanotubes/chitosan magnetic composite film for chromium species removal. Chemosphere 218:391–401.  https://doi.org/10.1016/j.chemosphere.2018.11.080CrossRefGoogle Scholar
  94. Ngah WSW, Kamari A, Fatinathan S, Ng PW (2006) Adsorption of chromium from aqueous solution using chitosan beads. Adsorption 12(4):249–257.  https://doi.org/10.1007/s10450-006-0501-0CrossRefGoogle Scholar
  95. Nithya R, Gomathi T, Sudha PN, Venkatesan J, Anil S, Kim S-K (2016) Removal of Cr(VI) from aqueous solution using chitosan-g-poly(butyl acrylate)/silica gel nanocomposite. Int J Biol Macromolecules 87:545–554.  https://doi.org/10.1016/j.ijbiomac.2016.02.076CrossRefGoogle Scholar
  96. Otuonye UC, Barminas JT, Magomya AM, Kamba EA, Andrew C (2014) Removal of Chromium (VI) as a heavy metal from aqueous solution using Chitin obtained from Bargi fish (Heterotis Miloticus) scale. Sci-Afric J Sci Issues 2(3):128–131Google Scholar
  97. Pang Y, Zeng G-M, Tang L, Zhang Y, Liu Y-Y, Lei X-X, Wu M-S, Li Z, Liu C (2011) Cr(VI) reduction by Pseudomonas aeruginosa immobilized in a polyvinyl alcohol/sodium alginate matrix containing multi-walled carbon nanotubes. Bioresour Technol 102(22):10733–10736.  https://doi.org/10.1016/j.biortech.2011.08.078CrossRefGoogle Scholar
  98. Percot A, Viton C, Domard A (2003) Optimization of Chitin extraction from shrimp shells. Biomacromol 4(1):12–18.  https://doi.org/10.1021/bm025602kCrossRefGoogle Scholar
  99. Periyasamy S, Viswanathan N (2018) Hydrothermal synthesis of hydrocalumite assisted biopolymeric hybrid composites for efficient Cr(vi) removal from water. New J Chem 42(5):3371–3382.  https://doi.org/10.1039/C7NJ04524GCrossRefGoogle Scholar
  100. Periyasamy S, Gopalakannan V, Viswanathan N (2018) Hydrothermal assisted magnetic nano-hydroxyapatite encapsulated alginate beads for efficient Cr(VI) uptake from water. J Environ Chem Eng 6(1):1443–1454.  https://doi.org/10.1016/j.jece.2018.01.007CrossRefGoogle Scholar
  101. Preethi J, Prabhu SM, Meenakshi S (2017) Effective adsorption of hexavalent chromium using biopolymer assisted oxyhydroxide materials from aqueous solution. React Funct Polym 117:16–24.  https://doi.org/10.1016/j.reactfunctpolym.2017.05.006CrossRefGoogle Scholar
  102. Preethi J, Vigneshwaran S, Meenakshi S (2019) Performance of Chitosan engraved iron and lanthanum mixed oxyhydroxide for the detoxification of hexavalent chromium. Int J Biol Macromolecules.  https://doi.org/10.1016/j.ijbiomac.2019.02.101CrossRefGoogle Scholar
  103. Qiu B, Xu C, Sun D, Yi H, Guo J, Zhang X, Qu H, Guerrero M, Wang X, Noel N, Luo Z, Guo Z, Wei S (2014) Polyaniline coated ethyl cellulose with improved hexavalent chromium removal. ACS Sustain Chem Eng 2(8):2070–2080.  https://doi.org/10.1021/sc5003209CrossRefGoogle Scholar
  104. Rajiv Gandhi M, Meenakshi S (2013) Preparation of amino terminated polyamidoamine functionalized chitosan beads and its Cr(VI) uptake studies. Carbohydr Polym 91(2):631–637.  https://doi.org/10.1016/j.carbpol.2012.08.028CrossRefGoogle Scholar
  105. Rajiv Gandhi M, Viswanathan N, Meenakshi S (2010) Preparation and application of alumina/chitosan biocomposite. Int J Biol Macromolecules 47(2):146–154.  https://doi.org/10.1016/j.ijbiomac.2010.05.008CrossRefGoogle Scholar
  106. Rathinam K, Singh SP, Li Y, Kasher R, Tour JM, Arnusch CJ (2017) Polyimide derived laser-induced graphene as adsorbent for cationic and anionic dyes. Carbon 124:515–524.  https://doi.org/10.1016/j.carbon.2017.08.079CrossRefGoogle Scholar
  107. Rathinam K, Singh SP, Arnusch CJ, Kasher R (2018) An environmentally-friendly chitosan-lysozyme biocomposite for the effective removal of dyes and heavy metals from aqueous solutions. Carbohydr Polym 199:506–515.  https://doi.org/10.1016/j.carbpol.2018.07.055CrossRefGoogle Scholar
  108. Rathinam K, Jayaram P, Sankaran M (2019) Synthesis and characterization of magnetic Chitin composite and its application towards the uptake of Pb(II) and Cd(II) ions from aqueous solution. Environ Prog Sustain Energy 38(s1):S288–S297.  https://doi.org/10.1002/ep.13013CrossRefGoogle Scholar
  109. Sağ Y, Aktay Y (2001) Application of equilibrium and mass transfer models to dynamic removal of Cr(VI) ions by Chitin in packed column reactor. Process Biochem 36(12):1187–1197.  https://doi.org/10.1016/S0032-9592(01)00150-9CrossRefGoogle Scholar
  110. Salam MA (2017) Preparation and characterization of chitin/magnetite/multiwalled carbon nanotubes magnetic nanocomposite for toxic hexavalent chromium removal from solution. J Mol Liquids 233:197–202.  https://doi.org/10.1016/j.molliq.2017.03.023CrossRefGoogle Scholar
  111. Salih SS, Ghosh TK (2018) Preparation and characterization of Chitosan-coated diatomaceous earth for hexavalent Chromium removal. Environ Process 5(1):23–39.  https://doi.org/10.1007/s40710-017-0280-5CrossRefGoogle Scholar
  112. Samuel J, Pulimi M, Paul ML, Maurya A, Chandrasekaran N, Mukherjee A (2013) Batch and continuous flow studies of adsorptive removal of Cr(VI) by adapted bacterial consortia immobilized in alginate beads. Bioresour Technol 128:423–430.  https://doi.org/10.1016/j.biortech.2012.10.116CrossRefGoogle Scholar
  113. Samuel MS, Shah SS, Subramaniyan V, Qureshi T, Bhattacharya J, Pradeep Singh ND (2018) Preparation of graphene oxide/chitosan/ferrite nanocomposite for Chromium(VI) removal from aqueous solution. Int J Biol Macromolecules 119:540–547.  https://doi.org/10.1016/j.ijbiomac.2018.07.052CrossRefGoogle Scholar
  114. Samuel MS, Bhattacharya J, Raj S, Santhanam N, Singh H, Pradeep Singh ND (2019) Efficient removal of Chromium(VI) from aqueous solution using chitosan grafted graphene oxide (CS-GO) nanocomposite. Int J Biol Macromolecules 121:285–292.  https://doi.org/10.1016/j.ijbiomac.2018.09.170CrossRefGoogle Scholar
  115. Sankararamakrishnan N, Dixit A, Iyengar L, Sanghi R (2006) Removal of hexavalent chromium using a novel cross linked xanthated chitosan. Bioresour Technol 97(18):2377–2382.  https://doi.org/10.1016/j.biortech.2005.10.024CrossRefGoogle Scholar
  116. Santosa SJ, Siswanta D, Sudiono S, Utarianingrum R (2008) Chitin–humic acid hybrid as adsorbent for Cr(III) in effluent of tannery wastewater treatment. Appl Surf Sci 254(23):7846–7850.  https://doi.org/10.1016/j.apsusc.2008.02.102CrossRefGoogle Scholar
  117. Saravanan D, Gomathi T, Sudha PN (2013) Sorption studies on heavy metal removal using chitin/bentonite biocomposite. Int J Biol Macromolecules 53:67–71.  https://doi.org/10.1016/j.ijbiomac.2012.11.005CrossRefGoogle Scholar
  118. Sessarego S, Rodrigues SCG, Xiao Y, Lu Q, Hill JM (2019) Phosphonium-enhanced chitosan for Cr(VI) adsorption in wastewater treatment. Carbohydr Polym 211:249–256.  https://doi.org/10.1016/j.carbpol.2019.02.003CrossRefGoogle Scholar
  119. Shankar P, Gomathi T, Vijayalakshmi K, Sudha PN (2014) Comparative studies on the removal of heavy metals ions onto cross linked chitosan-g-acrylonitrile copolymer. Int J Biol Macromolecules 67:180–188.  https://doi.org/10.1016/j.ijbiomac.2014.03.010CrossRefGoogle Scholar
  120. Sharma RK, Lalita Singh AP (2017) Sorption of Pb(II), Cu(II), Fe(II) and Cr(VI) metal ions onto cross-linked graft copolymers of chitosan with binary vinyl monomer mixtures. React Funct Polym 121:32–44 (2017).  https://doi.org/10.1016/j.reactfunctpolym.2017.10.015CrossRefGoogle Scholar
  121. Shen C, Chen H, Wu S, Wen Y, Li L, Jiang Z, Li M, Liu W (2013) Highly efficient detoxification of Cr(VI) by chitosan–Fe(III) complex: process and mechanism studies. J Hazard Mater 244–245:689–697.  https://doi.org/10.1016/j.jhazmat.2012.10.061CrossRefGoogle Scholar
  122. Shi T, Yang D, Yang H, Ye J, Cheng Q (2017) Preparation of chitosan crosslinked modified silicon material and its adsorption capability for chromium(VI). Appl Clay Sci 142:100–108.  https://doi.org/10.1016/j.clay.2016.11.023CrossRefGoogle Scholar
  123. Šillerová H, Komárek M, Liu C, Poch J, Villaescusa I (2015) Biosorbent encapsulation in calcium alginate: effects of process variables on Cr(VI) removal from solutions. Int J Biol Macromolecules 80:260–270.  https://doi.org/10.1016/j.ijbiomac.2015.06.032CrossRefGoogle Scholar
  124. Singh P, Nagendran R (2016) A comparative study of sorption of chromium (III) onto chitin and chitosan. Appl Water Sci 6(2):199–204.  https://doi.org/10.1007/s13201-014-0218-2CrossRefGoogle Scholar
  125. Singh SP, Rathinam K, Kasher R, Arnusch CJ (2018) Hexavalent chromium ion and methyl orange dye uptake via a silk protein sericin–chitosan conjugate. RSC Adv 8(48):27027–27036.  https://doi.org/10.1039/C8RA03907KCrossRefGoogle Scholar
  126. Sugashini S, Begum KMMS, Ramalingam A (2015) Removal of Cr(VI) ions using Fe-loaded chitosan carbonized rice husk composite beads (Fe-CCRCB): experiment and quantum chemical calculations. J Mol Liquids 208:380–387.  https://doi.org/10.1016/j.molliq.2015.04.048CrossRefGoogle Scholar
  127. Sun L, Yuan Z, Gong W, Zhang L, Xu Z, Su G, Han D (2015) The mechanism study of trace Cr(VI) removal from water using Fe0 nanorods modified with chitosan in porous anodic alumina. Appl Surf Sci 328:606–613.  https://doi.org/10.1016/j.apsusc.2014.12.094CrossRefGoogle Scholar
  128. Sun X, Li Q, Yang L, Liu H (2016) Chemically modified magnetic chitosan microspheres for Cr(VI) removal from acidic aqueous solution. Particuology 26:79–86.  https://doi.org/10.1016/j.partic.2015.11.003CrossRefGoogle Scholar
  129. Taha AA, Wu Y-N, Wang H, Li F (2012) Preparation and application of functionalized cellulose acetate/silica composite nanofibrous membrane via electrospinning for Cr(VI) ion removal from aqueous solution. J Environ Manage 112:10–16.  https://doi.org/10.1016/j.jenvman.2012.05.031CrossRefGoogle Scholar
  130. Thinh NN, Hanh PTB, Ha LTT, Anh LN, Hoang TV, Hoang VD, Dang LH, Khoi NV, Lam TD (2013) Magnetic chitosan nanoparticles for removal of Cr(VI) from aqueous solution. Mater Sci Eng, C 33(3):1214–1218.  https://doi.org/10.1016/j.msec.2012.12.013CrossRefGoogle Scholar
  131. Vakili M, Deng S, Li T, Wang W, Wang W, Yu G (2018) Novel crosslinked chitosan for enhanced adsorption of hexavalent chromium in acidic solution. Chem Eng J 347:782–790.  https://doi.org/10.1016/j.cej.2018.04.181CrossRefGoogle Scholar
  132. Vilela PB, Dalalibera A, Duminelli EC, Becegato VA, Paulino AT (2018) Adsorption and removal of chromium (VI) contained in aqueous solutions using a chitosan-based hydrogel. Environ Sci Pollut Res.  https://doi.org/10.1007/s11356-018-3208-3CrossRefGoogle Scholar
  133. Vu HC, Dwivedi AD, Le TT, Seo S-H, Kim E-J, Chang Y-S (2017) Magnetite graphene oxide encapsulated in alginate beads for enhanced adsorption of Cr(VI) and As(V) from aqueous solutions: role of crosslinking metal cations in pH control. Chem Eng J 307:220–229.  https://doi.org/10.1016/j.cej.2016.08.058CrossRefGoogle Scholar
  134. Wang J, Chen C (2014) Chitosan-based biosorbents: modification and application for biosorption of heavy metals and radionuclides. Bioresour Technol 160:129–141.  https://doi.org/10.1016/j.biortech.2013.12.110CrossRefGoogle Scholar
  135. Wang S-L, Lee J-F (2011) Reaction mechanism of hexavalent chromium with cellulose. Chem Eng J 174(1):289–295.  https://doi.org/10.1016/j.cej.2011.09.031CrossRefGoogle Scholar
  136. Wen Y, Tang Z, Chen Y, Gu Y (2011) Adsorption of Cr(VI) from aqueous solutions using chitosan-coated fly ash composite as biosorbent. Chem Eng J 175:110–116.  https://doi.org/10.1016/j.cej.2011.09.066CrossRefGoogle Scholar
  137. Wilbur S, Abadin H, Fay M et al (2012) Toxicological profile for Chromium. Atlanta (GA): agency for toxic substances and disease registry (US). (2012 Sep.7, ANALYTICAL METHODS)Google Scholar
  138. World Health Organization (2006) Guidelines for drinking-water quality, 3rd edn. GenevaGoogle Scholar
  139. Wu Z, Li S, Wan J, Wang Y (2012) Cr(VI) adsorption on an improved synthesised cross-linked chitosan resin. J Mol Liquids 170:25–29.  https://doi.org/10.1016/j.molliq.2012.03.016CrossRefGoogle Scholar
  140. Yan Y, An Q, Xiao Z, Zheng W, Zhai S (2017) Flexible core-shell/bead-like alginate@PEI with exceptional adsorption capacity, recycling performance toward batch and column sorption of Cr(VI). Chem Eng J 313:475–486.  https://doi.org/10.1016/j.cej.2016.12.099CrossRefGoogle Scholar
  141. Yan E, Cao M, Ren X, Jiang J, An Q, Zhang Z, Gao J, Yang X, Zhang D (2018) Synthesis of Fe3O4 nanoparticles functionalized polyvinyl alcohol/chitosan magnetic composite hydrogel as an efficient adsorbent for chromium (VI) removal. J Phys Chem Solids 121:102–109.  https://doi.org/10.1016/j.jpcs.2018.05.028CrossRefGoogle Scholar
  142. Yavuz AG, Dincturk-Atalay E, Uygun A, Gode F, Aslan E (2011) A comparison study of adsorption of Cr(VI) from aqueous solutions onto alkyl-substituted polyaniline/chitosan composites. Desalination 279(1):325–331.  https://doi.org/10.1016/j.desal.2011.06.034CrossRefGoogle Scholar
  143. Younes I, Rinaudo M (2015) Chitin and chitosan preparation from marine sources. Structure, properties and applications. Mar Drugs 13(3):1133–1174.  https://doi.org/10.3390/md13031133CrossRefGoogle Scholar
  144. Yu Z, Zhang X, Huang Y (2013) Magnetic Chitosan–Iron(III) Hydrogel as a Fast and Reusable Adsorbent for Chromium(VI) Removal. Ind Eng Chem Res 52(34):11956–11966.  https://doi.org/10.1021/ie400781nCrossRefGoogle Scholar
  145. Yu T, Liu S, Xu M, Peng J, Li J, Zhai M (2016) Synthesis of novel aminated cellulose microsphere adsorbent for efficient Cr(VI) removal. Radiat Phys Chem 125:94–101.  https://doi.org/10.1016/j.radphyschem.2016.03.019CrossRefGoogle Scholar
  146. Yu P, Wang H-Q, Bao R-Y, Liu Z, Yang W, Xie B-H, Yang M-B (2017) Self-assembled sponge-like chitosan/reduced graphene oxide/montmorillonite composite hydrogels without cross-linking of chitosan for effective Cr(VI) sorption. ACS Sustain Chem Eng 5(2):1557–1566.  https://doi.org/10.1021/acssuschemeng.6b02254CrossRefGoogle Scholar
  147. Yue R, Chen Q, Li S, Zhang X, Huang Y, Feng P (2018) One-step synthesis of 1,6-hexanediamine modified magnetic chitosan microspheres for fast and efficient removal of toxic hexavalent chromium. Sci Rep 8(1):11024.  https://doi.org/10.1038/s41598-018-29499-zCrossRefGoogle Scholar
  148. Zhang L, Xia W, Teng B, Liu X, Zhang W (2013) Zirconium cross-linked chitosan composite: preparation, characterization and application in adsorption of Cr(VI). Chem Eng J 229:1–8.  https://doi.org/10.1016/j.cej.2013.05.102CrossRefGoogle Scholar
  149. Zhang L, Xia W, Liu X, Zhang W (2015) Synthesis of titanium cross-linked chitosan composite for efficient adsorption and detoxification of hexavalent chromium from water. J Mater Chem A 3(1):331–340.  https://doi.org/10.1039/C4TA05194GCrossRefGoogle Scholar
  150. Zhang L, Luo H, Liu P, Fang W, Geng J (2016) A novel modified graphene oxide/chitosan composite used as an adsorbent for Cr(VI) in aqueous solutions. Int J Biol Macromolecules 87:586–596.  https://doi.org/10.1016/j.ijbiomac.2016.03.027CrossRefGoogle Scholar
  151. Zhang B, Hu R, Sun D, Wu T, Li Y (2018) Fabrication of chitosan/magnetite-graphene oxide composites as a novel bioadsorbent for adsorption and detoxification of Cr(VI) from aqueous solution. Sci Rep 8(1):15397.  https://doi.org/10.1038/s41598-018-33925-7CrossRefGoogle Scholar
  152. Zhao D, Gao X, Wu C, Xie R, Feng S, Chen C (2016) Facile preparation of amino functionalized graphene oxide decorated with Fe3O4 nanoparticles for the adsorption of Cr(VI). Appl Surf Sci 384:1–9.  https://doi.org/10.1016/j.apsusc.2016.05.022CrossRefGoogle Scholar
  153. Zhou Y, Jin Q, Zhu T, Akama Y (2011) Adsorption of chromium (VI) from aqueous solutions by cellulose modified with β-CD and quaternary ammonium groups. J Hazard Mater 187(1):303–310.  https://doi.org/10.1016/j.jhazmat.2011.01.025CrossRefGoogle Scholar
  154. Zhu C, Liu F, Zhang Y, Wei M, Zhang X, Ling C, Li A (2016) Nitrogen-doped chitosan-Fe(III) composite as a dual-functional material for synergistically enhanced co-removal of Cu(II) and Cr(VI) based on adsorption and redox. Chem Eng J 306:579–587.  https://doi.org/10.1016/j.cej.2016.07.096CrossRefGoogle Scholar
  155. Zimmermann AC, Mecabô A, Fagundes T, Rodrigues CA (2010) Adsorption of Cr(VI) using Fe-crosslinked chitosan complex (Ch-Fe). J Hazard Mater 179(1):192–196.  https://doi.org/10.1016/j.jhazmat.2010.02.078CrossRefGoogle Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  1. 1.University of Duisburg-Essen, Chair of Mechanical Process Engineering/Water TechnologyDuisburgGermany
  2. 2.Department of Environmental Science and EngineeringIndian Institute of Technology BombayPowaiIndia

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