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负载型CoS2/Bi2WO6的制备及其光催化性能研究
江苏省先进催化与绿色制造协同创新中心，常州大学石油化工学院，江苏 常州 213164
Preparation and Photocatalytic Properties of Loaded CoS2/Bi2WO6
Jiangsu Province Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
Abstract：A novel visible-light-responsive heterojunction bismuth tungstate (CoS2/Bi2WO6) composite photocatalyst was synthesized from bismuth tungstate (Bi2WO6) and metal sulfide (CoS2) by a hydrothermal method. The structure and properties of the prepared photocatalysts were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), Brunaue-Emmett-Teller (BET), photoluminescence (PL) and ultraviolet-visible light diffusion (UV-DRS). The results showed that CoS2 was successfully loaded on the surface of Bi2WO6 to form CoS2/Bi2WO6 heterojunction, which promoted the separation of photo-generated electrons and holes, expanded the light absorption range, and improved the photocatalytic activity of the composite catalyst under visible light. The CoS2/Bi2WO6-0.3% sample showed the best catalytic activity and the degradation ratio of MB reached 97.71% within 180 min under visible light, which indicated that CoS2/Bi2WO6 composite material was a new type of photocatalyst with high catalytic efficiency.
MA Xin,QIAN Xiang,FAN Xiaoqiang et al. Preparation and Photocatalytic Properties of Loaded CoS2/Bi2WO6[J]. Chemical Reaction Engineering and Technology, 2020, 36(4): 297-306.
