Low-cost and efficient Mn/CeO_(2) catalyst for photocatalytic VOCs degradation via scalable colloidal solution combustion synthesis method

作     者：Yingguang Zhang Muyan Wu Yifei Wang Xiaolong Zhao Dennis Y.C.Leung Yingguang Zhang;Muyan Wu;Yifei Wang;Xiaolong Zhao;Dennis Y.C.Leung

作者机构：Department of Mechanical EngineeringThe University of Hong KongPokfulam RoadHong KongChina School of Mechanical Engineering and AutomationHarbin Institute of TechnologyShenzhen 518000China 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2022年第116卷第21期

页      面：169-179页

核心收录：

学科分类：081704[工学-应用化学] 081705[工学-工业催化] 07[理学] 08[工学] 070304[理学-物理化学(含∶化学物理)] 083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 0806[工学-冶金工程] 0817[工学-化学工程与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0802[工学-机械工程] 0702[理学-物理学] 0801[工学-力学（可授工学、理学学位）] 

基　　金：supported by an international collaboration funding of China Petrochemical Technology Company Limited 

主　　题：Mesoporous CeO_(2) Manganese modification Scalable synthesis Photocatalysis VOCs abatement 

摘      要：Colloidal solution combustion synthesis(CSCS)is a simple and easy method for mass-production of crystalline nanomaterials with tunable pore *** this work,mesoporous Mn/CeO_(2) catalysts were fabricated via CSCS method coupled with a dip-coating process and used for photocatalytic oxidation(PCO)of *** vacuum ultraviolet(VUV)irradiation,a high toluene removal efficiency of about 92%was achieved with a toluene reaction rate of about 118μmol/g/h in a continuous flow reactor.A possible degradation pathway was proposed based on the analysis of intermediates by Fourier transform infrared photoluminescence spectra(FTIR)and *** temperature-programmed reduction(H_(2)-TPR),Brunauer-Emmett-Teller(BET)surface areas,photoluminescence spectra(PL)spectra and X-ray photoelectron spectroscopy(XPS)were carried out to analyze physical and chemical properties of the *** with Mn_(x)Ce_(1-x)O_(2) catalysts synthesized by one step CSCS method,Mn/CeO_(2) has a higher photocatalytic activity,which is attributed to the presence of higher contents of Ce^(3+),Mn^(2+)and Mn^(3+)*** presence of higher contents of these species plays a key role in the activity enhancement of toluene oxidation and ozone *** method is facile,efficient and scalable,and it may become a promising industrial application technology for catalyst synthesis in the near future.