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Environ Sci Technol


Title:Delocalization Effect Promoted the Indoor Air Purification via Directly Unlocking the Ring-Opening Pathway of Toluene
Author(s):Qu W; Wang P; Gao M; Hasegawa JY; Shen Z; Wang Q; Li R; Zhang D;
Address:"International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, Research Center of Nano Science and Technology, College of Sciences, Shanghai University, Shanghai 200444, People's Republic of China. Institute for Catalysis, Hokkaido University, Sapporo, Hokkaido 001-0021, Japan"
Journal Title:Environ Sci Technol
Year:2020
Volume:20200710
Issue:15
Page Number:9693 - 9701
DOI: 10.1021/acs.est.0c02906
ISSN/ISBN:1520-5851 (Electronic) 0013-936X (Linking)
Abstract:"The ring-opening process was generally considered as the rate-determining step for aromatic volatile organic compound photocatalytic degradation. A sophisticated and intensive degradation pathway is critical to the poor removal efficiency and low mineralization. In the present contribution, we successfully tailored and identified the ring-opening pathway of toluene elimination by electron delocalization in a borocarbonitride photocatalyst. By means of modulation of the dopant coordination configuration and electron geometry in the catalyst, the lone electrons of carbon transform into delocalized counterparts, sequentially elevating the interaction between the toluene molecules and photocatalyst. The aromatic ring of toluene can be attacked directly in the effect of electron delocalization without engendering additional intermediate species, significantly facilitating the removal and mineralization of toluene. This unprecedented route-control strategy alters the aromatic-ring-based reaction behavior from toluene to CO(2) and paves a way to purify the refractory pollutants from the top design"
Keywords:"*Air Pollutants *Air Pollution, Indoor/analysis Catalysis *Environmental Pollutants Titanium Toluene/analysis;"
Notes:"MedlineQu, Wenqiang Wang, Penglu Gao, Min Hasegawa, Jun-Ya Shen, Zhi Wang, Qing Li, Ruomei Zhang, Dengsong eng Research Support, Non-U.S. Gov't 2020/07/01 Environ Sci Technol. 2020 Aug 4; 54(15):9693-9701. doi: 10.1021/acs.est.0c02906. Epub 2020 Jul 10"

 
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