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以钛酸丁酯为TiO2前驱体,使TiO2均匀分散于纯硅介孔分子筛MCM-41的介孔孔道内表面,利用TiO2光学性质将AuCl-4还原为Au(0)并组装于氧化钛修饰的MCM-41孔道中.对所合成的Au负载的氧化钛修饰的MCM-41进行了XRD,XPS,N2吸附-脱附曲线,及固体UV-Vis漫反射等多种结构表征.由XPS谱和固体UV-Vis漫反射吸收光谱的plasmon吸收峰证明Au团簇呈现0价的金属状态.
Titanium tetrabutoxide (TiO2) was used as a precursor of TiO2 to uniformly disperse TiO2 on the inner surface of mesoporous silica mesoporous MCM-41. AuCl-4 was reduced to Au (0) by optical properties of TiO2 and assembled into titanium oxide In the MCM-41 well. The synthesized Au-supported titanium oxide modified MCM-41 was characterized by XRD, XPS, N2 adsorption-desorption curves and solid-state UV-Vis diffuse reflectance spectroscopy. The plasmon absorption peaks of the XPS spectrum and the solid UV-Vis diffuse reflection absorption spectrum demonstrate that the Au cluster assumes a 0-valent metal state.