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 i...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.展开更多
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)+2 种基金Changzhou International Cooperation Project(Grant No.CZ20230018)Foundation of Social Development of Changzhou(Grant No.CE20225063)International Joint Laboratory of the Jiangsu Education Department.
文摘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.
