Biochar loaded with manganese ferrite (FBC) was prepared by hydrothermal synthesis,and applied in Pb2+ removal from synthetic wastewater.The product was characterized by fourier tansform infrared (FT-IR).Effect factors,such as pH,initial concentration of Pb2+,contact time and adsorption kinetics,adsorption isotherms on FBC adsorption for Pb2+ were investigated.The adsorption equilibrium of Pb2+ was achieved after 120min at 25℃,and the maximum adsorption capacity was 126.1mg/g.The adsorption process which followed the pseudo-second-order kinetics and Langmuir isotherm equation showed that monomolecular chemisorption played dominant role in Pb2+ adsorption.The desorption result indicated that the adsorption capacities of FBC could still reach up to 70mg/g by five repetition tests.
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