影像科学与光化学2011，Vol.29Issue(5)：353-363,11.
负载金的掺氮二氧化钛的制备及其可见光催化性能
Preparation of Gold-Modified Nitrogen-Doped TiO2 and Its Visible Light Photocatalytic Activity
摘要
Abstract
N-doped TiO2 was obtained from nanotube titanic acid and aqueous ammonia by hydrothermal method, and then gold-modified N-doped TiO2 was prepared using deposition-precipitation method to deposit Au on the surface of N-doped TiO2. The physicochemical properties of resultant N-doped or Au/N-doped TiO2 samples were investigated by means of transmission electron microscopic (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), diffuse reflectance spectra (DRS), and electron spin resonance (ESR). The photocatalytic activity was evaluated by monitoring oxidation of propylene under visible light irradiation. Results indicated that N-TiO2 and Au/N-TiO2 showed obviously the visible light (λ≥420 nm) photocatalytic activity. The visible light sensitization was ascribed to the formation of single-electron-trapped oxygen vacancies.关键词
TiO2/金负载/氮掺杂/光催化Key words
TiO2/ Au/ N-doped/ visible light/ photocatalytic activity分类
化学化工引用本文复制引用
景明俊,王岩,张敏,杨建军..负载金的掺氮二氧化钛的制备及其可见光催化性能[J].影像科学与光化学,2011,29(5):353-363,11.基金项目
国家自然科学基金(20973054). （20973054）
