TiO2/ACF复合材料吸附耦合光催化去除甲苯的研究  

Coupling Adsorption With Photocatalysis for the Removal of Toluene With TiO2/ACF Composites

作　　者：戴业欣 李雨薇 齐学进 李孟 薛明 刘芳 赵朝成[1,2] 王永强 DAI Yexin;LI Yuwei;QI Xuejin;LI Meng;XUE Ming;LIU Fang;ZHAO Chaocheng;WANG Yongqiang(State Key Laboratory of Petroleum Pollution Control,Beijing 102206,China;College of Chemical Engineering,China University of Petroleum,Qingdao 266580,China)

机构地区：[1]石油石化污染物控制与处理国家重点实验室,北京102206 [2]中国石油大学(华东)化学工程学院,山东青岛266580

出　　处：《石油学报（石油加工）》2019年第4期685-695,共11页Acta Petrolei Sinica(Petroleum Processing Section)

基　　金：石油石化污染物控制与处理国家重点实验室开放课题(PPCIP2017005)资助

摘　　要：采用超声辅助溶胶-凝胶浸渍法制备二氧化钛/活性碳纤维(TiO2/ACF)复合材料,采用扫描电子显微镜(SEM)、X射线衍射(XRD)、傅里叶变换红外光谱仪(FTIR)、N2-吸附-脱附等温线、X射线光电子能谱(XPS)、紫外可见吸收光谱(UV-vis)、荧光光谱(PL)等方法对TiO2/ACF复合材料进行表征。在自制的反应器中进行了紫外光激发下甲苯的动态去除实验,考察了不同因素对TiO2/ACF复合材料吸附耦合光催化去除甲苯效果的影响。结果表明:TiO2/ACF复合膜具有吸附和光催化协同效应,在穿透点之前,对于甲苯的去除可保持100%;在穿透点之后,浸渍3次的TiO2/ACF复合材料对甲苯的去除率可达80%。A photocatalyst comprising TiO2 on activated carbon fibers (ACF) was prepared by a sol-dipping-gel process.The structure of TiO2/ACF was characterized by scanning electron microscopy (SEM),X-ray diffraction (XRD),Fourier transform infrared spectroscopy (FTIR),N 2 adsorption-desorption isotherms,X-ray photoelectron spectroscopy (XPS),UV-vis absorption spectroscopy (UV-vis) and fluorescence spectroscopy (PL) analysis.The dynamic removal of toluene under UV excitation was investigated in a self-made reactor.The results show that the TiO2/ACF composite film has a synergistic adsorption and photocatalytic effect.The removal of toluene is maintained at 100% before the penetration point,and the removal of toluene reach 80% after the penetration point by dipping three times.

关 键 词：TIO2/ACF 吸附 光催化 甲苯 

分 类 号：X703[环境科学与工程—环境工程]