Achieving UV and visible-light photocatalytic activity enhancement of AgI/BiOIO3 heterostructure:Decomposition for diverse industrial contaminants and high mineralization ability

作     者：Fang Chen Hongwei Huang Yihe Zhang Tierui Zhang 

作者机构：Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes National Laboratory of Mineral Materials School of Materials Science and Technology China University of Geosciences Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and Chemistry Chinese Academy of Sciences 

出 版 物：《Chinese Chemical Letters》 (中国化学快报(英文版))

年 卷 期：2017年第28卷第12期

页      面：2244-2250页

核心收录：

学科分类：081704[工学-应用化学] 081705[工学-工业催化] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：supported by the National Natural Science Foundation of China (Nos.51672258,51572246, 51572270,U1662118) the Strategic Priority Research Program of the Chinese Academy of Sciences (No.XDB17030300) the Fundamental Research Funds for the Central Universities (No.2652015296) 

主　　题：Photocatalysis Heterostructure BiOIO3 AgI Antibiotics Phenols 

摘      要：Heterostructure photocatalyst fabrication is of great significance for promoting the photoreactivity and solar-energy utilization efficiencies. In this work, AgI/BiOIOheterostructure photocatalysts are synthesized by a facile in-situ crystallization of AgI on BiOIO. The photocatalytic performance is first surveyed by decomposition of model dye methyl orange(MO) separately with illumination of UV light and visible-light(λ 420 nm). It indicates that AgI/BiOIOshows highly improved photocatalytic activity regardless of the light source, which should be attributed to the matchable band energy levels between AgI and BiOIO, benefiting the efficient charge separation. Notably, AgI/BiOIOshows a universal photocatalytic activity for treating diverse antibiotics and phenols, including tetracycline hydrochloride,chlortetracycline hydrochloride, 2,4-dichlorophenol(2,4-DCP), phenol and bisphenol A(BPA), and the strong mineralization ability of AgI/BiOIOwas also demonstrated. Additionally, the different mechanisms under UV and visible light irradiation are investigated in detail. This work provides a new reference for design and manipulation of high-performance nonselective heterostructure photocatalyst for environmental purification.