Preparation and Characterization of Visible-Light-Driven AgBr/TiO2 towards CO2 Reduction into Fuels
During the past several decades there have seen a significant rise in atmospheric carbon dioxide levels resulting from the combustion of hydrocarbon fuels, This investigation on AgBr/TiO2 preparation and characterization for CO2 reduction under visible light (λ>420 nm) was studied. The nano-structured AgBr/TiO2 photocatalyst was prepared by the deposition-precipitation method in the presence of cetyltrimethylammonium bromide (CTAB), and characterized by X-ray diffraction (XRD), diffuse reflectance spectra (DRS) and transmission electron microscopy (TEM). Their photocatalytic activities were evaluated by the reduction yield in the presence of CO2 and water (not given here). The highly efficiently photocatalytic activities of AgBr/TiO2 in the reduction process of CO2 is attributed to its strong absorption in the visible-light region. In addition, it was found that AgBr/TiO2 photocatalyst was stable in the repeated uses under visible light irradiation, due to the transfer of photoexcited electrons from the conduction band of well-dispersed AgBr to that of TiO2.
ABOU ASI Mudar ZHU Linfei HE Chun SU Minhua XIA Dehua DENG Huiqi BIAN Di XIONG Ya
School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China Gua
国际会议
2011 International Symposium on Environmental Science and Technology(2011 环境科学与技术国际会议 2011 ISEST)
广东东莞
英文
192-197
2011-06-01（万方平台首次上网日期，不代表论文的发表时间）