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采用“溶剂热-光还原”法成功制备出Bi_2MoO_6-Pt异质结光催化剂.该催化剂由Bi_2MoO_6三维微球(直径:1~4μm)和Pt纳米颗粒(~2.5nm)组成.本文以罗丹明B(Rh B)和4-氯酚(4-CP)为目标污染物研究了该异质结的可见光光催化性能.Bi_2MoO_6-Pt异质结的光催化活性明显高于纯Bi_2MoO_6,Pt的最佳负载量为0.3 wt%.同时,Bi_2MoO_6-Pt-2异质结(Pt的负载量为0.3 wt%)也可以有效地矿化有机污染物.更重要的是,Bi_2MoO_6-Pt-2异质结具有良好的稳定性,可以被重复使用.
Bi2MoO6-Pt heterojunction photocatalyst was successfully prepared by the method of “solvothermal-photoreduction” .This catalyst consists of three-dimensional Bi2MoO6 microspheres (diameter: 1 ~ 4μm) and Pt nanoparticles RhB and 4-CP as the target pollutants.The photocatalytic activity of the Bi 2 MoO 6-Pt heterostructure was significantly higher than that of the pure Bi 2 MoO 6, Pt The optimal loading is 0.3 wt% .At the same time, Bi 2 MoO 6 -Pt-2 heterojunction (Pt loading 0.3 wt%) can effectively mineralize organic pollutants.More importantly, Bi 2 MoO 6 -Pt-2 Heterojunction has good stability, can be reused.