Removal of Hexavalent Chromium on Chitosan-Deposited Activated Carbon

Abstract

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.