无机材料学报2011，Vol.26Issue(11)：1175-1180,6.DOI:10.3724/SP.J.1077.2011.01175
可见光响应Pt沉积La2O3/TiO2制备及其对甲苯的光热催化去除
Preparation of Visible Light Response Pt-doped La2O3/TiO2 and Thermo-photocatalytic Degradation of Toluene
摘要
Abstract
Pt-La2O3/TiO2 photocatalyst was prepared by Sol-Gel and photodeposition methods using Ti(Obu)4 and La(NO)3·6H2O as raw material. The catalyst was characterized by XPS, FITR, XRD, DRS, TEM, and N2(77K) adsorption. The performance of photocataltic in the removal of toluene under visible light and the influence of temperature on removal of toluene were investigated. The results showed that doped-Pt existed as the forms of single Pt and oxygen-adsorption. Pt loading had no influence on the phase composition of TiO2, but decreased TiO2 particle size and increased the surface area. Nano-Pt was uniformly dispersed on La2O/TiO2 with diameter of 5-10 nm. Pt-La2O3/TiO2 has much more hydroxyl group than TiO2 and La2CO3/TiO2. The rate of photocatalytic oxidation gaseous toluene on Pt-La2O3/TiO2 increased with the temperature increasing, and thermal catalytic reaction taken place in parallel with photocatalytic oxidation reaction. There is a synergetic effect between photocatalysis and thermal catalysis in the thermo-photocatalysis degradation of toluene.关键词
可见光/Pt沉积/La掺杂/TiO2/甲苯Key words
visible light/ Pt loading/ La2O3/TiO2/ TiO2/ toluene分类
通用工业技术引用本文复制引用
仲鑫,孙剑,刘守新..可见光响应Pt沉积La2O3/TiO2制备及其对甲苯的光热催化去除[J].无机材料学报,2011,26(11):1175-1180,6.基金项目
中央高校基本科研业务费专项基金(DL09DB01),博士点基金(20100062110003) （DL09DB01）
