In order to improve the efficiency of photocatalytic hydrogen production and reduce the cost,a ternary photocatalytic composite was prepared by taking graphite phase carbon nitride as the main material,loading Nickel sulfide and cobalt sulfide,and its performance was studied.The experimental results showed that ternary photocata-lytic composite materials had been successfully prepared in this experiment according to X-ray diffraction analysis(XRD)and specific surface area and pore analysis(BET),and the materials had a large specific surface area and a small pore size of 103.5 m2/g and 3.68 nm,respectively.Electrochemical testing and photocatalytic hydrogen produc-tion experiments showed that the ternary photocatalytic composite material had the best photocatalytic performance,with a hydrogen generation amount of 11.37 mmol/g and a hydrogen generation rate of 2.274 mmol/(g[×]h)after 5 hours of light irradiation.In conclusion,the Nickel sulfide/cobalt sulfide/graphite phase carbon nitride ternary photo-catalytic composite prepared in this experiment has good photocatalytic hydrogen production performance.
关键词
光催化制氢/石墨相氮化碳/硫化钴/复合材料/比表面积
Key words
photocatalytic hydrogen production/graphite phase carbon nitride/cobalt sulfide/composite materials/specific surface area
维普
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