Removal of Hexavalent Chromium on Chitosan-Deposited Activated Carbon
This research involved the deposition of chitosan on the surface of activated carbon(AC) to get an adsorbent(CS-AC) to removal Cr(VI) from aqueous solution. Each adsorbent used in this study was characterized using BET specific surface analyzer, FT-IR and elemental analyzer. Batch experiments were conducted to determine the removal efficiency of Cr(VI). Chitosan was physically adsorbed on the surface of the AC and the removal efficiency of CS-AC was greater than that of raw activated carbon(RAC), suggesting that the surface modification of AC by chitosan provides more adsorption sites on their solid surface for Cr(VI) adsorption.
Chang Kyu Rhee
J. M. Lee et al., "Removal of Hexavalent Chromium on Chitosan-Deposited Activated Carbon", Solid State Phenomena, Vol. 135, pp. 85-88, 2008