Construction of a Carbon/Lignosulfonate Adsorbent to ...
In this study, a low-cost C/SL adsorbent was prepared by lignosulfonate to effectively remove Pb 2+ and Cu 2+ from water. At pH 7, the maximum adsorption capacities of C/SL for Pb 2+ and Cu 2+ were 281 and 276 mg g –1, respectively. The adsorption process conforms to Langmuir isotherm and pseudo-second-order kinetics.