标题：ZnO Rhombic Sheets of Highly Crystalline Particles and Their Composite with Ag2O toward Efficient Photocatalysis
作者：Dong, Xiaobin; Yang, Ping; Wang, Junpeng; Huang, Baibiao
作者机构：[Dong, Xiaobin; Yang, Ping; Wang, Junpeng] Univ Jinan, Sch Mat Sci & Engn, Jinan 250022, Peoples R China.; [Huang, Baibiao] Shandong Univ, State Key 更多
通讯作者地址：[Yang, P]Univ Jinan, Sch Mat Sci & Engn, Jinan 250022, Peoples R China.
关键词：composites; heterojunctions; nanoparticles; photocatalysis; zinc oxide
摘要：ZnO rhombic sheets consisting of small particles with a size range of 150-250nm have been prepared successfully using zinc glycerolate as a template through calcining at 600 degrees C. The crystallinity of the small particle plays an important role toward highly efficient photocatalysis. The sheet consisting of regular ZnO particles with fewer surface defects revealed enhanced photocatalysis compared with that constructed from small ZnO nanoparticles. Monodisperse Ag2O nanoparticles were deposited on the rhombic sheet. Highly efficient photocatalysis was observed after Ag2O nanoparticle decoration under ultraviolet and visible-light irradiation for degradation of methyl orange (MO) and 2,4-dichlorophenol (2,4-DCP). The results of photocatalysis investigations demonstrated that the ZnO rhombic sheets with Ag2O/ZnO molar ratio of 1:6 had great activity for decomposing MO and 2,4-DCP. Ag2O/ZnO rhombic sheets are favorable for the separation of the photocatalyst, which is important for applications.