Visible Light Photocatalytic Properties and Thermochromic Phenomena of Nanostructured BiOCl Microspheres

查看全文 作　　者：Jiushan [1]Cheng;Cong [1]Wang;Yinfang [1]Cui;Ying [1]Sun;Ying [1]Zuo

机构地区：[1]Center for Condensed Matter and Material Physics,Department of Physics,Beihang University

出　　处：《Journal of Materials Science & Technology》索引2014年第30卷第11期,共4页

基　　金：supported by the National Natural Science Foundation of China (NSFC) (No.51172012) 摘　　要：Black nanostructured Bi OCl microspheres were directly synthesized by a hydrothermal method. The black balllike Bi OCl microspheres and black flower-like Bi OCl microspheres were obtained using different surfactant.The color of the Bi OCl microspheres turned from black to white when being annealed at 400℃ in air for 3 h and could be recovered to black by exposure to ultraviolet light for a few hours. The photocatalytic activity of both the black and the white Bi OCl microspheres was characterized by the photo-degradation of methyl orange dye under visible light irradiation. The black ball-like nanostructure Bi OCl displayed the best photocatalytic activity, compared with the white Bi OCl and the black flower-like Bi OCl. It can degrade the methyl orange dye to 20% within 70 min under visible light irradiation. The high activity of the Bi OCl ball-like sphere may own to its special morphology, strong absorption in visible light range and the existence of oxygen vacancies. 关键词：可见光照射纳米结构光催化性能微球热致变色光催化活性水热法合成表面活性剂

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Visible Light Photocatalytic Properties and Thermochromic Phenomena of Nanostructured BiOCl Microspheres

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