Abstract
We loaded a lignocellulosic substrate extracted from wheat bran with ferric ions. This new low-cost adsorbent was prepared for the adsorption and removal of arsenate and arsenite ions from aqueous systems. The loading process of Fe in this biomaterial was done by hydrolization of a ferric salt while an alkaline solution was added dropwise. The new material obtained has a high sensivity to arsenite and arsenate species. Here, we investigated the effect of contact time, pH, and Fe content on the adsorption of both arsenic ions on the new material. This adsorption was found to be highly pH-dependent, which can be explained on the basis of electrostatic interactions between ionic species in solution and the ≡FeOH surface groups. The maximum adsorption capacity of arsenite and arsenate species vary linearly with the amount of Fe loaded on the lignocellulosic substrate.
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References
Dupont L, Bouanda J, Dumonceau J, Aplincourt M (2005) Biosorption of Cu(II) and Zn(II) onto a lignocellulosic substrate extracted from wheat bran. Environ Chem Lett 2:165–168
Dutta PK, Ray AJ, Sharma VK, Millero FJ (2004) Adsorption of arsenate and arsenite on titanium dioxide suspension. J Colloid Int Sci 278:270–275
Guo X, Fuhua C (2005) Removal of arsenic by bead cellulose loaded with iron oxyhydroxide from groundwater. Environ Sci Technol 39:6808–6818
Katsoyiannis IA, Zouboulis AI (2002) Removal of arsenic from contaminated water sources by sorption onto iron-oxide-coated polymeric materials. Water Res 36:5141–5155
Lakshmipathiraj P, Narasimhan BRV, Prabhakar S, Bhaskar Raju G (2006) Adsorption of arsenate on synthetic goethite from aqueous solution. J Hazard Mater 136:281–287
Raven KP, Jain A, Loeppert RH (1998) Arsenite and arsenate adsorption on ferrihydrite: kinetics, equilibrium, and adsorption envelopes. Environ Sci Technol 32:344–349
Sherman DM, Randall SR (2003) Surface complexation of arsenic (V) to iron (III) hydroxides: structural mechanism from ab initio molecular geometries and EXAFS spectroscopy. Geochim Cosmochim Acta 67(22):4223–4230
Sun X, Doner HE (1996) An investigation of arsenate and arsenite bonding structures on goethite by FTIR. Soil Sci 161:865–872
Wilkie JA, Hering JG (1996) Adsorption of arsenic onto hydrous ferric oxide: effects of adsorbate/adsorbent ratios and co-occuring solutes. Colloids Surf 107:97–110
Zhang FS, Itoh H (2005) Iron oxide-loaded slag for arsenic removal from aqueous system. Chemosphere 60:319–325
Acknowledgments
We are grateful to the society ARD for giving us the LS material for our experiments.
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Dupont, L., Jolly, G. & Aplincourt, M. Arsenic adsorption on lignocellulosic substrate loaded with ferric ion. Environ Chem Lett 5, 125–129 (2007). https://doi.org/10.1007/s10311-007-0092-3
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DOI: https://doi.org/10.1007/s10311-007-0092-3