影像科学与光化学2009,Vol.27Issue(6):462-468,7.
AgBr/TiO_2复合催化剂:双注法制备及其可见光催化性能
AgBr/TiO_2 Composite Catalyst: Preparation by Double-Jet Method and Visible Light Photocatalytic Property
摘要
Abstract
AgBr/TiO_2 composite photocatalyst was prepared by double-jet method using TiO_2 as sub-strate. The structure, light absorption and microscopy of AgBr/TiO_2 were respectively measured by X-ray diffraction (XRD), ultraviolet visible spectroscopy (UV-Vis) and scanning electron mi-croscopy (SEM). The photocatalytic activity of AgBr/TiO_2 for degradation of methyl orange (MO) and butyl rhodamine B (b-RhB) was studied under visible light irradiation. The results showed that the light absorption of AgBr/TiO_2 was broadened to 400-600 nm compared to TiO_2. With increas-ing the content of AgBr in AgBr/TiO_2, the light absorption intensity increased. AgBr/TiO_2 showed maximal photocatalytic activity when the molar ratio of AgBr to TiO_2 was 0.25. In addition, degra-dation efficiency of b-RhB with AgBr/TiO_2was higher than that of MO under the same condition.关键词
AgBr/TiO_2/双注法/可见光催化性能/甲基橙Key words
AgBr/TiO_2/ double-jet method/ visible light photocatalytic activity/ methyl orange分类
化学化工引用本文复制引用
曹静,林海莉,贾丽,陈士夫..AgBr/TiO_2复合催化剂:双注法制备及其可见光催化性能[J].影像科学与光化学,2009,27(6):462-468,7.基金项目
国家自然科学基金(20673042)和安徽省"含能材料"省级重点实验室科研基金(KLEM2009013)资助项目. (20673042)