The Preparation Of Molybdenum Disulfide Composite Catalysts And Their Performences

Molybdenum disulfide(Mo S2) is a new functional inorganic semiconductor material that features layered structure and has particular optical and electronic properties.Furthermore, Mo S2 has a broad application prospect in the fields of catalysis,photoelectric conversion and hydrogen production. In this work, we utilized these features of Mo S2 for the effective modification of copper group elements(IB) materials about cuprous oxide(Cu2O), silver phosphate(Ag3PO4) and gold nanoparticles(Au NPs).Here, we prepared three kinds of Mo S2 baesd catalysts and explored their catalytic performance.(1)We prepared Cu2O/Mo S2 composite catalysts by Nano Mo S2 and Bulk Mo S2. By comparing their visible light catalytic activity, we study the modification effects of Mo S2 on Cu2O was studied.(2)The Mo S2 modified silver phosphate(Ag3PO4/Mo S2) were synthesized by co-precipitation method. The enhanced photocatalytic activity and the activity species under visible light were observed;(3)The gold nanoparticles loaded on Mo S2(Au/Mo S2) were obtained by the liquid reduction. The catalytic reduction performance were estimated and the active site of Au/Mo S2 and growth mechanism of the gold nanoparticles were proposed.The results suggested that the Mo S2 based catalysts(Cu2O/Mo S2, Ag3PO4/Mo S2 and Au/Mo S2) have great catalytic performance and a better stability. And the active species were detected and the catalytic mechanisms were proposed. The above results enriched the catalysts modification study by Mo S2 and widen the application of Mo S2 in the field of environmental purification and the reduction of organic transformation.