华侨大学学报（自然科学版）2011，Vol.32Issue(6)：652-656,5.
Ag2O光催化过程中单质Ag的生成及作用机理
Study on Effect and Mechanism of Metallic Ag in the Photocatalytic Process by Ag2O
摘要
Abstract
Silver oxide photocatalyst, Ag2O, was synthesized by a hydrothermal method in this work. The as-prepared product was characterized by X-ray powder diffraction( XRD), scanning electron microscopy(SEM), UV-Vis diffuse reflectance spectra(DRS) and surface photovoltage spectroscopy(SPS). The results indicated the microzyme-like Ag2O with optical bandgap of 1. 35 eV is comprised of particles with diameters of 2~5 μm. The photocatalytic activity was investigated by decomposing methylene blue(MB) under visible light irradiation. Metallic Ag particles with diameters of 0. L~0. 5 μm were deposited on Ag2O after 0. 5 h irradiation. The repetitive tests showed that the high efficient and stable performance of Ag2O are chiefly attributed to the generation of metallic Ag in the photocatalytic process.关键词
Ag2O/Ag/可见光/光催化/水热法Key words
Ag2O/Ag/ visible light/photocatalysis/hydrothermal method分类
化学化工引用本文复制引用
陈亦琳,陈林峰..Ag2O光催化过程中单质Ag的生成及作用机理[J].华侨大学学报（自然科学版）,2011,32(6):652-656,5.基金项目
国家自然科学基金资助项目(21003055) （21003055）
华侨大学高层次人才科研启动项目(06BS213) （06BS213）
