Removal of methyl orange from aqueous solution by using exfoliated graphite/ZnO composites

摘要

Exfoliated graphite/ZnO composites (EG/ZnO) were prepared by heating a mixture of EG and zinc acetate, and under UV irradiation, used for removing methyl orange (MO) from aqueous solution. The composites synchronously have the adsorption efficiency of EG and decomposition efficiency of ZnO. The removal efficiency is influenced by the ZnO content, initial MO concentration and pH of solution. After selection of desired operation parameters, the complete MO removal can be achieved after 3h UV irradiation.