Construction of spinel/biochar film/honeycomb monolithic catalyst for photothermal catalytic oxidation of VOCs  

作　　者：Xikai Lu Chunyan Zhang Meng Wu Wenjie Liu Bin Xue Chao Yao Xiazhang Li 

机构地区：[1]National-Local Joint Engineering Research Center of Biomass Refining and High-quality Utilization,Changzhou University,Changzhou 213164,China [2]Department of Materials Science and Engineering,University of Delaware,Delaware City,DE 19716,USA

出　　处：《Frontiers of Chemical Science and Engineering》2024年第9期61-71,共11页化学科学与工程前沿（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant No.51674043);Jiangsu High Institutions Key Basic Research Projects of Natural Science(Grant No.21KJA430002);Changzhou International Cooperation Project(Grant No.CZ20230018);Foundation of Social Development of Changzhou(Grant No.CE20225063);International Joint Laboratory of the Jiangsu Education Department.

摘　　要：Photothermal catalytic oxidation emerges as a promising method for the removal of volatile organic compounds(VOCs).Herein,via sol-gel impregnation method,spinel CuMn_(2)O_(4)was coated on attapulgite honeycombs with integrating biochar(BC)film as the second carrier,using chestnut shell as complexation agent.Various mass ratios of CuMn_(2)O_(4)to chestnut shell was modulated to investigate the catalytic toluene degradation performance.Results indicated that the monolithic CuMn_(2)O_(4)/BC/honeycomb catalyst demonstrated superior photothermal catalytic toluene degradation with a low T90(temperature at 90%degradation)of 263℃ when the mass ratio of CuMn_(2)O_(4)to biomass was 1:4.The addition of BC film substantially increased the honeycomb's specific surface area and improved the photothermal conversion of spinel,leading to enhanced photothermal catalytic activity.This study presents a cost-effective strategy for eliminating industrial VOCs using clay-biomass based monolithic catalyst.

关 键 词：CuMn_(2)O_(4) BIOCHAR photothermal catalysis attapulgite honeycomb volatile organic compound 

分 类 号：O64[理学—物理化学]