文献类型：期刊文献

英文题名：Photocatalytic reduction of CO2 with H2O on Pt-loaded TiO2 catalyst

作者：Zhang, Qin-Hui[1]; Han, Wen-Dong[1]; Hong, Yi-Juan[1]; Yu, Jian-Guo[1]

机构：[1] State Key Lab of Chemical Engineering, College of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China

年份：2009

卷号：148

期号：3-4

起止页码：335

外文期刊名：Catalysis Today

收录：EI(收录号：20095112555290)

语种：英文

外文关键词：Catalyst activity - Irradiation - Fluorescence spectroscopy - High resolution transmission electron microscopy - Photocatalysis - Solar energy - X ray diffraction - Yarn - Energy conversion - Platinum compounds - Titanium dioxide

摘要：A gas-solid heterogeneous system for solar-chemical energy conversion of CO2-SCR (Selective Catalytic Reduction) with H2O on different nanostructure photocatalysts and the photocatalysis pathway were discussed. Different crystal phases and sizes of low-dimensional nano-TiO2 and Pt-metal supported photocatalysts are synthesized and characterized with X-ray diffraction, high-resolution transmission electron microscopy, photoluminescence, CO pulse chemisorptions, N2 adsorption-desorption analysis at 77 K and X-ray fluorescence spectrometry. The catalytic activity was tested in a fixed-bed photocatalysis reactor and the CH4 yield on the Pt/TiO2 nanotube photocatalysts is more remarkable. It increased with the increase of the UV irradiation time and accumulated to about 4.8 μmol h-1 gTi-1, enhanced as the increase of the reaction temperature and H2O/CO2 molar ratio as well. ? 2009 Elsevier B.V. All rights reserved.