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J Colloid Interface Sci

Title:		Enhanced toluene oxidation by photothermal synergetic catalysis on manganese oxide embedded with Pt single-atoms
Author(s):		Wang Y; Dai J; Wang M; Qi F; Jin X; Zhang L;
Address:		"State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Ding-xi Road, Shanghai 200050, PR China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049, PR China. State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Ding-xi Road, Shanghai 200050, PR China. State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Ding-xi Road, Shanghai 200050, PR China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049, PR China; School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, PR China. Electronic address: zhlingxia@mail.sic.ac.cn"
Journal Title:		J Colloid Interface Sci
Year:		2023
Volume:		20230114
Issue:
Page Number:		577 - 587
DOI:		10.1016/j.jcis.2023.01.053
ISSN/ISBN:		1095-7103 (Electronic) 0021-9797 (Linking)
Abstract:		"The degradation of volatile organic compounds (VOCs) at low temperature remains a big challenge. Photothermal catalysis coupling the advantages of photocatalysis and thermocatalysis is promising to address this issue. However, there is still a long way to construct highly active catalysts and deeply understand the mechanism of photothermal catalysis. Herein, maganese oxide (MnO(2))catalysts embedded with Pt single-atoms (0.11 wt% Pt) have achieved greatly enhanced toluene conversion of 95%, far surpassing most supported Pt photothermal catalysts. The excellent catalytic activity has been disclosed to derive from the synergetic effect oflight-driven thermocatalysis and photocatalysis. The light-driven thermocatalysis predominates and the strong electron transfer from Pt single-atoms to MnO(2) improves the activity of surface lattice oxygen to boost the generation of benzoic acid and the mineralization of toluene. Meanwhile, in photocatalytic process, Pt single-atoms accelerate the generation of superoxide radicals (O(2)(-)), which facilitate the ring-opening and deep oxidation of toluene. This understanding on the photothermal synergetic mechanism will inspire the design of highly efficient catalysts for VOCs oxidation"
Keywords:		Manganese oxides Photothermal catalysis Pt single-atoms Synergetic effect Toluene oxidation;
Notes:		"PubMed-not-MEDLINEWang, Yang Dai, Jinyu Wang, Min Qi, Fenggang Jin, Xixiong Zhang, Lingxia eng 2023/01/21 J Colloid Interface Sci. 2023 Apr 15; 636:577-587. doi: 10.1016/j.jcis.2023.01.053. Epub 2023 Jan 14"