Enhanced photocatalytic activity of Ag-TiO2/Ag heterogeneous films

被引：3
作者：
Liang, Ying [1 ]
Wang, ShaoHua [1 ]
Guo, PengFeng [1 ]
机构：
[1] Guangdong Pharmaceut Univ, Sch Chem & Chem Engn, Guangzhou 510006, Guangdong, Peoples R China
来源：
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A | 2015年 / 89卷 / 11期
基金：
中国国家自然科学基金;
关键词：
heterogeneous films; Ag nanoparticles; Ag film; photocatalytic activity; ATOMIC LAYER DEPOSITION; TIO2; AG; NANOPARTICLES; PHOTODEGRADATION; NANOCOMPOSITES; PERFORMANCES;
D O I：
10.1134/S0036024415110102
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Ag-deposited TiO2 and Ag (Ag-TiO2/Ag) films coated on glass substrates were prepared using a simple sol-gel and dip-coating method. The Ag chemical state was investigated through X-ray diffractometry and X-ray photoelectron spectroscopy. Results showed that the Ag mainly exists in metallic state in the Ag-TiO2 film. Ag-TiO2/Ag exhibits higher photocatalytic activity than individual Ag-TiO2 and TiO2/Ag films. This enhanced photocatalytic activity was attributed to high surface plasmon resonance effects and separation rates of photoinduced electron-hole pairs of Ag nanoparticles. Results were verified by photoluminescence and UV-Vis spectroscopy.
引用
收藏
页码：2137 / 2141
页数：5
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