Aqueous
solutions of lead nitrate, HCl, H2SO4, H3PO4 and CTAB were
prepared from Pb(NO3)2, Merck, respective acid, Merck and
CTAB (C16H33NCH3Br), Aldrich, respectively. Batch studies
were performed with 30 and 45 mg/L of lead ions to investigate
the extent of adsorption.