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J Hazard Mater

Title:		Optimization of Co(3)O(4) surface sites for photo-ozone catalytic mineralization of dichloromethane
Author(s):		Chang B; Cao T; Shen Z; Zhang Y; Wang Z; Li J; Lyu J;
Address:		"School of Environment and Civil Engineering, Jiangnan University, Wuxi, Jiangsu, 214122, China. School of Environment and Civil Engineering, Jiangnan University, Wuxi, Jiangsu, 214122, China; Jiangsu College of Water Treatment Technology and Material Collaborative Innovation Center, Suzhou, Jiangsu, 215009, China; Jiangsu Key Laboratory of Anaerobic Biotechnology, Jiangnan University, Wuxi, Jiangsu, 214122, China. School of Environment and Civil Engineering, Jiangnan University, Wuxi, Jiangsu, 214122, China; Jiangsu College of Water Treatment Technology and Material Collaborative Innovation Center, Suzhou, Jiangsu, 215009, China. Electronic address: ljz@jiangnan.edu.cn"
Journal Title:		J Hazard Mater
Year:		2023
Volume:		20230327
Issue:
Page Number:		131275 -
DOI:		10.1016/j.jhazmat.2023.131275
ISSN/ISBN:		1873-3336 (Electronic) 0304-3894 (Linking)
Abstract:		"Obtaining high removal rate of chlorinated volatile organic compounds (CVOCs) and CO(2) selectivity with a low ratio of O(3)/CVOC and energy consumption is challenging. Dodecylamine was used in this study to create active sites on Co(3)O(4) for photo-ozone catalytic mineralization of dichloromethane (DCM). Amine-Co(3)O(4)-450 is a dodecylamine-modified sample with high density of Co(3+), Co(2+), and hydroxyl due to its nanosheet structure and exposed (112) facets. The optimized surface significantly enhanced the cleavage of the C-Cl bond at low temperatures. Photocatalysis primarily participated in the oxidation of intermediates following DCM dichlorination and significantly improved CO(2) selectivity. The respective DCM removal rate and mineralization efficiency of Amine-Co(3)O(4)-450 with an O(3)/DCM molar ratio of 1.27 and one-sun irradiation were 14.9 and 15.0 times higher than the sum of those in the presence of light irradiation or O(3) alone. This finding indicated that a strong synergistic effect exists between O(3) and light"
Keywords:		CVOCs Catalytic ozonation Dodecylamine Photocatalysis Solar energy;
Notes:		"PubMed-not-MEDLINEChang, Baolin Cao, Tiannan Shen, Zhizhang Zhang, Yipu Wang, Zhenyu Li, Ji Lyu, Jinze eng Netherlands 2023/03/30 J Hazard Mater. 2023 Jun 15; 452:131275. doi: 10.1016/j.jhazmat.2023.131275. Epub 2023 Mar 27"