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http://dx.doi.org/10.4491/KSEE.2016.38.9.521

Optimization of Synthesis Condition for Nanoscale Zero Valent Iron Immobilization on Granular Activated Carbon  

Hwang, Yuhoon (Department of Environmental Engineering, Seoul National University of Science and Technology)
Mines, Paul D. (Department of Environmental Engineering, Technical University of Denmark)
Lee, Wontae (School of Civil and Environmental Engineering, Kumoh National Institute of Technology)
Andersen, Henrik R. (Department of Environmental Engineering, Technical University of Denmark)
Publication Information
Journal of Korean Society of Environmental Engineers / v.38, no.9, 2016 , pp. 521-527 More about this Journal
Abstract
Nanoscale zero valent iron (nZVI) has been intensively studied for the treatment of a plethora of pollutants through reductive reaction, however, the nano size should be of concern when nZVI is considered for water treatment, due to difficulties in recovery. The loss of nZVI causes not only economical loss, but also potential risk to human health and environment. Thus, the immobilization onto coarse or structured support is essential. In this study, two representative processes for nZVI immobilization on granular activated carbon (GAC) were evaluated, and optimized conditions for synthesizing Fe/GAC composite were suggested. Both total iron content and $Fe_0$ content can be significantly affected by preparation processes, therefore, it was important to avoid oxidation during preparation to achieve higher reduction capacity. Synthesis conditions such as reduction time and existence of intermediate drying step were investigated to improve $Fe_0$ content of Fe/GAC composites. The optimal condition was two hours of $NaBH_4$ reduction without intermediate drying process. The prepared Fe/GAC composite showed synergistic effect of the adsorption capability of the GAC and the degradation capability of the nZVI, which make this composite a very effective material for environmental remediation.
Keywords
Granular Activated Carbon; Nanoscale Zero Valent Iron; Oxidation-Reduction; Impregnation;
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  • Reference
1 Savage, N. and Diallo, M. S., "Nanomaterials and Water Purification: Opportunities and Challenges," J. Nanopart. Res., 7(4), 331-342(2005).   DOI
2 Tang, C. Y., Zhao, Y., Wang, R., Helix-Nielsen, C. and Fane, A. G., "Desalination by biomimetic aquaporin membranes: Review of status and prospects," Desalination, 308, 34-40(2013).   DOI
3 Rivera-Utrilla, J., Sanchez-Polo, M., Gomez-Serrano, V., Alvarez, P. M., Alvim-Ferraz, M. C. M. and Dias, J. M., "Activated carbon modifications to enhance its water treatment applications. An overview," J. Hazard. Mater., 187(1-3), 1-23(2011).   DOI
4 Hameed, B. H., Salman, J. M. and Ahmad, A. L., "Adsorption isotherm and kinetic modeling of 2,4-D pesticide on activated carbon derived from date stones," J. Hazard. Mater., 163, 121-126(2009).   DOI
5 Kobya, M., Demirbas, E., Senturk, E. and Ince, M., "Adsorption of heavy metal ions from aqueous solutions by activated carbon prepared from apricot stone," Bioresour. Technol., 96, 1518-1521(2005).   DOI
6 Grover, D. P., Zhou, J. L., Frickers, P. E. and Readman, J. W., "Improved removal of estrogenic and pharmaceutical compounds in sewage effluent by full scale granular activated carbon: Impact on receiving river water," J. Hazard. Mater., 185, 1005-1011(2011).   DOI
7 Subramani, A. K., Byrappa, K., Ananda, S., Lokanatha Rai, K. M., Ranganathaiah, C. and Yoshimura, M., "Photocatalytic degradation of indigo carmine dye using $TiO_2$ impregnated activated carbon," Bull. Mater. Sci., 30, 37-41(2007).   DOI
8 Yoon, K. Y., Byeon, J. H., Park, C. W. and Hwang, J., "Antimicrobial Effect of Silver Particles on Bacterial Contamination of Activated Carbon Fibers," Environ. Sci. Technol., 42, 1251-1255(2008).   DOI
9 Crane, R. A. and Scott, T. B., "Nanoscale zero-valent iron: Future prospects for an emerging water treatment technology," J. Hazard. Mater., 211-212, 112-125(2012).   DOI
10 Zhu, H., Jia, Y., Wu, X. and Wang, H., "Removal of arsenic from water by supported nano zero-valent iron on activated carbon," J. Hazard. Mater., 172, 1591-1596(2009).   DOI
11 Kim, H., Hong, H.-J., Jung, J., Kim, S.-H. and Yang, J.-W., "Degradation of trichloroethylene (TCE) by nanoscale zero-valent iron (nZVI) immobilized in alginate bead," J. Hazard. Mater., 176, 1038-1043(2010).   DOI
12 Liu, C., Li, X., Ma, B., Qin, A. and He, C., "Removal of water contaminants by nanoscale zero-valent iron immobilized in PAN-based oxidized membrane," Appl. Surf. Sci., 321, 158-165(2014).   DOI
13 Choi, H., Al-Abed, S. R., Agarwal, S. and Dionysiou, D. D., "Synthesis of Reactive Nano-Fe/Pd Bimetallic System-Impregnated Activated Carbon for the Simultaneous Adsorption and Dechlorination of PCBs," Chem. Mater., 20, 3649-3655(2008).   DOI
14 Hwang, Y., Salatas, A., Mines, P. D., Jakobsen, M. H. and Andersen, H. R., "Graduated characterization method using a multi-well microplate for reducing reactivity of nanoscale zero valent iron materials," Appl. Catal. B Environ., 181, 314-320(2016).   DOI
15 Tseng, H.-H., Su, J.-G. and Liang, C., "Synthesis of granular activated carbon/zero valent iron composites for simultaneous adsorption/dechlorination of trichloroethylene," J. Hazard. Mater., 192, 500-506 (2011).   DOI
16 Hwang, Y., Lee, Y.-C., Mines, P. D., Huh, Y. S. and Andersen, H. R., "Nanoscale zero-valent iron (nZVI) synthesis in a Mg-aminoclay solution exhibits increased stability and reactivity for reductive decontamination," Appl. Catal. B Environ., 147, 748-755(2014).   DOI
17 Liu, Y., Majetich, S. A., Tilton, R. D., Sholl, D. S. and Lowry, G. V., "TCE Dechlorination Rates, Pathways, and Efficiency of Nanoscale Iron Particles with Different Properties," Environ. Sci. Technol., 39, 1338-1345(2005).   DOI
18 Fu, L.-S., Jiang, J.-T., Xu, C.-Y. and Zhen, L., "Synthesis of hexagonal Fe microflakes with excellent microwave absorption performance," CrystEngComm, 14, 6827-6832(2012).   DOI
19 De Resende, V. G., De Grave, E., Da Costa, G. M. and Janssens, J., "Influence of the borohydride concentration on the composition of the amorphous Fe-B alloy produced by chemical reduction of synthetic, nano-sized iron-oxide particles: Part I: Hematite," J. Alloys Compd., 440, 236-247(2007).   DOI
20 Bae, S., Gim, S., Kim, H. and Hanna, K., "Effect of $NaBH_4$ on properties of nanoscale zero-valent iron and its catalytic activity for reduction of p-nitrophenol," Appl. Catal. B Environ., 182, 541-549(2016).   DOI