Preparation and characterization of alginate-kelp biochar composite hydrogel bead for dye removal

  • Godfred Ohemeng-Boahen
  • Divine Damertey Sewu
  • Seung Han WooEmail author
Research Article


The alginate-kelp biochar composite hydrogel bead (Alg-KBC) was successfully developed via physical crosslinking with Ca2+. The composite material was characterized by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), Fourier transform infrared spectroscopy (FTIR), inductively coupled plasma optical emission spectrometry (ICP-OES), and elemental analyzer. The Alg-KBC showed high removal capacity for crystal violet (CV), from aqueous solution (33.8% more than that of the pristine alginate bead). The adsorption isotherm data were fitted to the nonlinear forms of the Langmuir, Freundlich, and Redlich-Peterson isotherm models. Also, the adsorption kinetics data were analyzed with the nonlinear forms of the pseudo-first-order, pseudo-second-order, and intra-particle diffusion models. Both chemisorption and physisorption with an indispensable role of external mass transfer and stagewise pore diffusion were essential in the adsorption process. Thus, by impregnating biochar powder in alginate, a bio-platform, a composite hydrogel bead which has higher affinity for cationic dye in aqueous medium and also eliminates the onerous task of separating biochar powder from the adsorbate solution, was obtained. Hence, the Alg-KBC can be considered for efficient dye removal in the wastewater treatment process.


Alginate Saccharina japonica kelp seaweed Biochar Composite hydrogel Adsorption and crystal violet 



This work was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF – South Korea) funded by the Ministry of Education (Grant No. NRF-2016R1D1A1B03935962).

Supplementary material

11356_2019_6421_MOESM1_ESM.docx (18 kb)
ESM 1 (DOCX 18 kb)


  1. Adak A, Bandyopadhyay M, Pal A (2005) Removal of crystal violet dye from wastewater by surfactant-modified alumina. Sep Purif Technol 44:139–144Google Scholar
  2. Alhashimi HA, Aktas CB (2017) Life cycle environmental and economic performance of biochar compared with activated carbon: a meta-analysis. Resour Conserv Recycl 118:13–26CrossRefGoogle Scholar
  3. Amini M, Ashrafi M (2016) Photocatalytic degradation of some organic dyes under solar light irradiation using TiO2 and ZnO nanoparticles. Nano Res 1:79–86Google Scholar
  4. Bird MI, Wurster CM, de Paula Silva PH, Bass AM, De Nys R (2011) Algal biochar–production and properties. Bioresour Technol 102:1886–1891CrossRefGoogle Scholar
  5. Blanchard G, Maunaye M, Martin G (1984) Removal of heavy metals from waters by means of natural zeolites. Water Res 18:1501–1507CrossRefGoogle Scholar
  6. Blandino A, Macias M, Cantero D (1999) Formation of calcium alginate gel capsules: influence of sodium alginate and CaCl2 concentration on gelation kinetics. J Biosci Bioeng 88:686–689CrossRefGoogle Scholar
  7. Boakye P, Lee CW, Lee WM, Woo SH (2016) The cell viability on kelp and fir biochar and the effect on the field cultivation of corn. Clean Technol 22:29–34CrossRefGoogle Scholar
  8. Boakye P, Tran HN, Lee DS, Woo SH (2019) Effect of water washing pretreatment on property and adsorption capacity of macroalgae-derived biochar. J Environ Manag 233:165–174CrossRefGoogle Scholar
  9. Cestari AR, Vieira EF, Pinto AA, Lopes EC (2005) Multistep adsorption of anionic dyes on silica/chitosan hybrid: 1. Comparative kinetic data from liquid-and solid-phase models. J Colloid Interface Sci 292:363–372CrossRefGoogle Scholar
  10. Chen M, Wang D, Yang F, Xu X, Xu N, Cao X (2017) Transport and retention of biochar nanoparticles in a paddy soil under environmentally-relevant solution chemistry conditions. Environ Pollut 230:540–549CrossRefGoogle Scholar
  11. Cheung W, Szeto Y, McKay G (2007) Intraparticle diffusion processes during acid dye adsorption onto chitosan. Bioresour Technol 98:2897–2904CrossRefGoogle Scholar
  12. Coates J (2000) Interpretation of infrared spectra, a practical approach, in: R.A. Meyers (Ed.), Encyclopedia of analytical chemistry, John Wiley & Sons Ltd, Chichester pp 10815-10837 Google Scholar
  13. Crini G, Badot P-M (2008) Application of chitosan, a natural aminopolysaccharide, for dye removal from aqueous solutions by adsorption processes using batch studies: a review of recent literature. Prog Polym Sci 33:399–447CrossRefGoogle Scholar
  14. Crini G, Lichtfouse E, Wilson LD, Morin-Crini N (2018) and non-adsorbents for wastewater treatment. Environ Chem Lett 17:195-213.Google Scholar
  15. Do X-H, Lee B-K (2013) Removal of Pb2+ using a biochar–alginate capsule in aqueous solution and capsule regeneration. J Environ Manag 131:375–382CrossRefGoogle Scholar
  16. Foo KY, Hameed BH (2010) Insights into the modeling of adsorption isotherm systems. Chem Eng J 156:2–10CrossRefGoogle Scholar
  17. Forgacs E, Cserhati T, Oros G (2004) Removal of synthetic dyes from wastewaters: a review. Environ Int 30:953–971CrossRefGoogle Scholar
  18. Gombotz WR, Wee S (1998) Protein release from alginate matrices. Adv Drug Deliv Rev 31:267–285CrossRefGoogle Scholar
  19. González M, Cea M, Medina J, González A, Diez M, Cartes P, Monreal C, Navia R (2015) Evaluation of biodegradable polymers as encapsulating agents for the development of a urea controlled-release fertilizer using biochar as support material. Sci Total Environ 505:446–453CrossRefGoogle Scholar
  20. Gözmen B, Kayan B, Gizir AM, Hesenov A (2009) Oxidative degradations of reactive blue 4 dye by different advanced oxidation methods. J Hazard Mater 168:129–136CrossRefGoogle Scholar
  21. Hassan A, Abdel-Mohsen A, Fouda MM (2014) Comparative study of calcium alginate, activated carbon, and their composite beads on methylene blue adsorption. Carbohydr Polym 102:192–198CrossRefGoogle Scholar
  22. Ip AW, Barford JP, McKay G (2010) A comparative study on the kinetics and mechanisms of removal of Reactive Black 5 by adsorption onto activated carbons and bone char. Chem Eng J 157:434–442CrossRefGoogle Scholar
  23. Jung K-W, Choi BH, Hwang M-J, Jeong T-U, Ahn K-H (2016a) Fabrication of granular activated carbons derived from spent coffee grounds by entrapment in calcium alginate beads for adsorption of acid orange 7 and methylene blue. Bioresour Technol 219:185–195CrossRefGoogle Scholar
  24. Jung K-W, Jeong T-U, Kang H-J, Ahn K-H (2016b) Characteristics of biochar derived from marine macroalgae and fabrication of granular biochar by entrapment in calcium-alginate beads for phosphate removal from aqueous solution. Bioresour Technol 211:108–116CrossRefGoogle Scholar
  25. Kim H-S (1990) A kinetic study on calcium alginate bead formation. Korean J Chem Eng 7:1–6CrossRefGoogle Scholar
  26. Kumar R, Ahmad R (2011) Biosorption of hazardous crystal violet dye from aqueous solution onto treated ginger waste (TGW). Desalination 265:112–118CrossRefGoogle Scholar
  27. Lagergren S (1898) About the theory of so-called adsorption of soluble substances. Sven Vetenskapsakad Handingarl 24:1–39Google Scholar
  28. Li X, Zheng L, Huang L, Zheng O, Lin Z, Guo L, Qiu B, Chen G (2013) Adsorption removal of crystal violet from aqueous solution using a metal-organic frameworks material, copper coordination polymer with dithiooxamide. J Appl Polym Sci 129:2857–2864CrossRefGoogle Scholar
  29. Luo X, Zhang L (2009) High effective adsorption of organic dyes on magnetic cellulose beads entrapping activated carbon. J Hazard Mater 171:340–347CrossRefGoogle Scholar
  30. Mckay G, Otterburn M, Sweeney A (1980) The removal of colour from effluent using various adsorbents—III. Silica: rate processes. Water Res 14:15–20CrossRefGoogle Scholar
  31. Mehrjouei M, Müller S, Möller D (2015) A review on photocatalytic ozonation used for the treatment of water and wastewater. Chem Eng J 263:209–219CrossRefGoogle Scholar
  32. Mittal A, Mittal J, Malviya A, Kaur D, Gupta V (2010) Adsorption of hazardous dye crystal violet from wastewater by waste materials. J Colloid Interface Sci 343:463–473CrossRefGoogle Scholar
  33. Mohanty K, Naidu JT, Meikap B, Biswas M (2006) Removal of crystal violet from wastewater by activated carbons prepared from rice husk. Ind Eng Chem Res 45:5165–5171CrossRefGoogle Scholar
  34. Qiusheng Z, Xiaoyan L, Jin Q, Jing W, Xuegang L (2015) Porous zirconium alginate beads adsorbent for fluoride adsorption from aqueous solutions. RSC Adv 5:2100–2112CrossRefGoogle Scholar
  35. Sewu DD, Boakye P, Jung H, Woo SH (2017a) Synergistic dye adsorption by biochar from co-pyrolysis of spent mushroom substrate and Saccharina japonica. Bioresour Technol 244:1142–1149CrossRefGoogle Scholar
  36. Sewu DD, Boakye P, Woo SH (2017b) Highly efficient adsorption of cationic dye by biochar produced with Korean cabbage waste. Bioresour Technol 224:206–213CrossRefGoogle Scholar
  37. Sing KS (1985) Reporting physisorption data for gas/solid systems with special reference to the determination of surface area and porosity (Recommendations 1984). Pure Appl Chem 57:603–619CrossRefGoogle Scholar
  38. Singh RL, Singh PK, Singh RP (2015) Enzymatic decolorization and degradation of azo dyes–A review. Int Biodeterior Biodegrad 104:21–31CrossRefGoogle Scholar
  39. Thakur S, Pandey S, Arotiba OA (2016) Development of a sodium alginate-based organic/inorganic superabsorbent composite hydrogel for adsorption of methylene blue. Carbohydr Polym 153:34–46CrossRefGoogle Scholar
  40. Tran HN, You S-J, Hosseini-Bandegharaei A, Chao H-P (2017) Mistakes and inconsistencies regarding adsorption of contaminants from aqueous solutions: a critical review. Water Res 120:88–116CrossRefGoogle Scholar
  41. Venugopal V (2016) Marine polysaccharides: Food applications. CRC PressGoogle Scholar
  42. Wang B, Gao B, Wan Y (2018) Entrapment of ball-milled biochar in Ca-alginate beads for the removal of aqueous Cd (II). J Ind Eng Chem 61:161–168CrossRefGoogle Scholar
  43. Yu KL, Lau BF, Show PL, Ong HC, Ling TC, Chen W-H, Ng EP, Chang J-S (2017) Recent developments on algal biochar production and characterization. Bioresour Technol 246:2–11Google Scholar
  44. Yu X, Wei C, Wu H (2015) Effect of molecular structure on the adsorption behavior of cationic dyes onto natural vermiculite. Sep Purif Technol 156:489–495Google Scholar

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© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of Chemical and Biological EngineeringHanbat National UniversityDaejeonRepublic of Korea

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