可见光催化剂S/TiO_2的制备与表征  

Preparation and Characterization of Visible-light Responsive Photocatalyst S/TiO_2

作　　者：王永强[1] 于秀娟[1] 杨红芬[1] 明琪[1] 孙德智[1] 

机构地区：[1]哈尔滨工业大学市政环境工程学院,哈尔滨150090

出　　处：《无机化学学报》2006年第4期771-774,共4页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金资助项目(No.50378027)。

摘　　要：The sulfur-doped titanium dioxide (S/TiO2) was prepared by calcinations. The photocatalytic decomposition of benzoic acid solution was carried out under simulated sun light; the photocatalytic activity is 2.7 times of TiO2. The results of XRD show that the sulfur can restrain the crystallization transformation of TiO2 from anatase to rutile, although the calcinations temperature has attained 500 ℃, the crystallization still is anatase entirely. The responsive wavelength range of S/TiO2 was shifted; it has obvious absorption in the region from 320 to 550 nm. The S (S6+) substituted for some of the lattice titanium atoms in S/TiO2. At the same time the XRF also prove the formation of S6+ and the atomic content is 2.13%.The sulfur-doped titanium dioxide （S/TiO2） was prepared by calcinations. The photocatalytic decomposition of benzoic acid solution was carried out under simulated sun light; the photocatalytic activity is 2.7 times of TiO2. The results of XRD show that the sulfur can restrain the crystallization transformation of TiO2 from anatase to rutile, although the calcinations temperature has attained 500 ℃, the crystallization still is anatase entirely. The responsive wavelength range of S/TiO2 was shifted; it has obvious absorption in the region from 320 to 550 nm. The S （S^6＋） substituted for some of the lattice titanium atoms in S/TiO2. At the same time the XRF also prove the formation of S^6＋ and the atomic content is 2.13%.

关 键 词：S掺杂 光催化 可见光 苯甲酸 

分 类 号：O614.411[理学—无机化学] O613.51[理学—化学]