Synthesis of biochar loaded with manganese ferrite and their performance for Pb2+ removal
Wang Yao1,2, Duan Zhengyang1, Shi Kangwei2, Liu Shuli1, Xu Longqian1, He Changhua1, Huang Qihua1, Xu Xiaojun1
1.Faculty of Environmental Science and Technology,Kunming University of Science and Technology,Kunming 650500; 2.Geological Party No.224,Sino Shaanxi Nuclear Industry Group,Xi'an 710024;
Abstract: 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.
王耀, 段正洋, 石康伟, 刘树丽, 徐龙乾, 何昌华, 黄启华, 徐晓军. 锰铁氧体/生物炭的制备及其对Pb2+吸附性能的研究[J]. 化工新型材料, 2018, 46(12): 209-213.
Wang Yao, Duan Zhengyang, Shi Kangwei, Liu Shuli, Xu Longqian, He Changhua, Huang Qihua, Xu Xiaojun. Synthesis of biochar loaded with manganese ferrite and their performance for Pb2+ removal. New Chemical Materials, 2018, 46(12): 209-213.
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