Abstract
A novel biochar carried nanoscale zero-valent iron (NZVI) particles were synthesized by means of liquid phase reduction method that can overcome the aggregation of NZVI particles. The Composite material of the biochar-NZVI can effectively improve the removing rate of hexavalent chromium Cr(VI) in the application of water treatment. The experimental results showed that the remove rate of Cr(VI) was up to 96.8% by using biochar-NZVI when the mass ratio of biochar and NZVI was of 5:1, the rate was enhanced by about 35.9% than that of the same dose pure NZVI. The analyzed results of TEM and BET showed that the biochar-NZVI had higher dispersion and specific surface area than pure NZVI, which was the key reason for biochar-NZVI with high removing efficiency of Cr(VI). The apparent rate constant kobs decreases from 0.1041 to 0.0235 min−1 as the initial concentration of Cr(VI) increased from 25 to 125 mg/L in the solution, indicating that the reaction velocity decreases with the increased initial concentration of Cr(VI) in the solution. The removal efficiency reached to 92.1% when the pH value of the solution containing biocha-NZVI treating Cr(VI) increased from 4.48 to 8.36, showing that the biochar carried NZVI has high removing rate of Cr(VI) in a wide range of pH value.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
G. Quan, J. Zhang, J. Guo, Y. Lan, Removal of Cr (VI) from aqueous solution by nanoscale zero-valent iron grafted on acid-activated attapulgite. Water Air Soil Pollut 225, 1979–1989 (2014)
C. Yan, W. Chen, L. Pan, Q. Wang, Removal of lead in water by nano zero valent iron loaded on bentonite. J. Water Resour Water Eng (in Chinese), 24, 20–24 (2013)
Q. Zhao, Q. Zhao, H. Wang, H. Yu, Z. Hui, Review of biochar soil improvement mechanism and the application prospect in our country tropical area. Chin. J. Trop. Agric. (in Chinese), 34, 53–57 (2014)
Y. Zhou, B. Gao, A.R. Zimmerman, H. Chen, M. Zhang, X. Cao, Biochar-supported zero valent iron for removal of various contaminants from aqueous solutions. Bioresour Technol 152, 538–542 (2014)
M. Avila, T. Burks, F. Akhtar, M. Göthelid, P.C. Lansåker, M.S. Toprak, M. Muhammed, A. Uheida, Surface functionalized nanofibers for the removal of chromium (VI) from aqueous solutions. Chem. Eng. J. 245, 201–209 (2014)
Y. Wang, Z. Fang, B. Liang, E.P. Tsang, Remediation of hexavalent chromium contaminated soil by stabilized nanoscale zero-valent iron prepared from steel pickling waste liquor. Chem. Eng. J. 247, 283–290 (2014)
H. Jabeen, V. Chandra, S. Jung, J.W. Lee K.S. Kim, S.B. Kim, Enhanced Cr(VI) removal using iron nanoparticle decorated graphene. Nanoscale 3, 3583–3585 (2011)
Z. Liu, F. Zhang, J. Wu, Characterization and application of chars produced from pinewood pyrolysis and hydrothermal treatment. Fuel 89, 510–514 (2010)
J. Yan, L. Han, W. Gao, S. Xue, M. Chen, Biochar supported nanoscale zerovalent iron composite used as persulfate activator for removing trichloroethylene, Biores Technol 175, 269–274 (2015)
Q. Wang, S. Snyder, J. Kim, Aqueous Ethanol modified nanoscale zerovalent iron in bromate reduction: synthesis, characterization, and reactivity. Environ. Sci. Technol. 43, 3292–3299 (2009)
X. Wang, C. Chen, H. Liu, J. Ma, Characterization and evaluation of catalytic dechlorination activity of Pd/Fe bimetallic nanoparticles. Indus. Eng. Chem. Res. 47, 8645–8651 (2008)
Z. Dai, J. Meng,. N. Muhammad, X. Liu, H. Wang, Y. He, P.C. Brookes, J. Xu, The potential feasibility for soil improvement, based on the properties of biochars pyrolyzed from different feedstocks. J. Soils Sed. 13, 989–1000 (2013)
J. Chen, J. Zhu, Z. Da, H. Xu, J. Yan, H. Ji, H. Shu, H. Li, Improving the photocatalytic activity and stability of graphene-like BN/AgBr composites. Appl. Surf. Sci. 313, 1–9 (2014)
Z. Chen, Y. Cheng, Z. Chen, M. Mallavarapu, N. Ravendra, Kaolin-supported nanoscale zero-valent iron for removing cationic dye-crystal violet in aqueous solution. J. Nanoparticle Res. 14, 899 (2012)
H. Zhu, Y. Jia, X. Wu, H. Wang, Removal of arsenic from water by supported nano zero-valent iron on activated carbon. J. Hazard. Mat. 172, 1591–1596 (2009)
R. Venkatapathy, D.G. Bessingpas, S. Canonica, J.A. Perlinger, Kinetics models for trichloroethylene transformation by zero-valent iron. Appl. Catal B: Environ. 37, 139–159 (2002)
N. Melitas, J.P. Wang, C.M. Peggy, F. James, Understanding soluble arsenate removal kinetics by zerovalent iron media. Environ. Sci. Technol. 36, 2074–2081 (2002)
X. Li, J. Cao, W. Zhang, Stoichiometry of Cr (VI) immobilization using nanoscale zerovalent iron (nZVI): a study with high-resolution X-ray photoelectron Spectroscopy (HR-XPS). Indus. Eng. Chem. Res. 47, 2131–2139 (2008)
Acknowledgements
This work is supported in parts by the National Natural Science Foundation of China (No. 31570515) and the Scientific Project Program of Suzhou City (No. SYN201511).
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2018 Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Shi, W., Song, X. (2018). Removal of Hexavalent Chromium from Aqueous Using Biochar Supported Nanoscale Zero-Velent Iron. In: Han, Y. (eds) Advances in Energy and Environmental Materials. CMC 2017. Springer Proceedings in Energy. Springer, Singapore. https://doi.org/10.1007/978-981-13-0158-2_89
Download citation
DOI: https://doi.org/10.1007/978-981-13-0158-2_89
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-13-0157-5
Online ISBN: 978-981-13-0158-2
eBook Packages: EnergyEnergy (R0)