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    					Construction of spinel/biochar film/honeycomb monolithic catalyst for photothermal catalytic oxidation of VOCs  | 
  					 
  					  										
						Xikai Lu1, Chunyan Zhang2, Meng Wu1, Wenjie Liu1, Bin Xue1, Chao Yao1( ), Xiazhang Li1( ) | 
					 
															
						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 | 
					 
										
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													     		                            						                            																	    Abstract  Photothermal catalytic oxidation emerges as a promising method for the removal of volatile organic compounds (VOCs). Herein, via sol-gel impregnation method, spinel CuMn2O4 was coated on attapulgite honeycombs with integrating biochar (BC) film as the second carrier, using chestnut shell as complexation agent. Various mass ratios of CuMn2O4 to chestnut shell was modulated to investigate the catalytic toluene degradation performance. Results indicated that the monolithic CuMn2O4/BC/honeycomb catalyst demonstrated superior photothermal catalytic toluene degradation with a low T90 (temperature at 90% degradation) of 263 °C when the mass ratio of CuMn2O4 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. 
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															| Keywords 
																																																				CuMn2O4  
																		  																																				biochar  
																		  																																				photothermal catalysis  
																		  																																				attapulgite honeycomb  
																		  																																				volatile organic compound  
																																			  
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																																Corresponding Author(s):
																Chao Yao,Xiazhang Li   
																													     		
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															| About author:  #usheng Xing, Yannan Jian and Xiaodan Zhao contributed equally to this work.]]>  | 
														 
																												
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																															Just Accepted Date: 19 April 2024  
																																																													Issue Date: 30 May 2024
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