Simulated Sunlight Irradiation Based Photocatalytic Degradation of Acrylonitrile by Sn-F Co-doped TiO 2/SiO 2 Nano Powder Catalyst  

作　　者：Hanliang Li Shiyu Miao Lu Qiu Bandna Bharti Feng Ouyang 

机构地区：[1]School of Civil and Environmental Engineering,Harbin Institute of Technology,Shenzhen 518055,Guangdong,China [2]School of Life Science and Medicine,Dalian University of Technology,Panjin 124000,Liaoning,China

出　　处：《Journal of Harbin Institute of Technology(New Series)》2021年第1期12-19,共8页哈尔滨工业大学学报（英文版）

基　　金：Sponsored by the Science and Technology Commission of Shenzhen Municipality,P.R.China(Grant Nos.JCYJ20140417172417138 and ZDSYS20140508161622508).

摘　　要：This study proved the significance of simulated sunlight irradiation response capability of Sn-F co-doped TiO_(2)/SiO_(2)(Sn-F-TiO_(2)/SiO_(2))photocatalysts,which were prepared by a simple sol-gel method and were evaluated by acrylonitrile degradation for photocatalytic activity.The synthesized catalysts were characterized by X-ray Diffraction(XRD),Scanning Electron Microscopy(SEM),Energy Dispersive Spectrometer(EDS),X-ray Photoelectron Spectroscopy(XPS),Brunauer-Emmett-Teller(BET),Ultraviolet-Visible Absorption spectroscopy(UV-Vis),and Photoluminescence Spectroscopy(PL).UV-Visible spectroscopy demonstrated that Sn doping caused remarkable red shift in TiO_(2),which significantly increased the absorption efficiency of the catalysts.The XPS results showed that Sn was successfully doped into the TiO_(2) lattice.The photocatalytic degradation of acrylonitrile indicated that the Sn-F-TiO_(2)/SiO_(2) photocatalysts exhibited excellent photocatalytic activity when being annealed at 550℃for 2 h.The degradation rate of acrylonitrile reached 67.7%after irradiation under simulated sunlight for 6 min,and the hole was the most important active species.

关 键 词：photocatalysis acrylonitrile degradation Sn doping F-TiO_(2)/SiO_(2) 

分 类 号：X506[环境科学与工程—环境工程]