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Chemosphere

Title:		Synergistic improving photo-Fenton and photo-catalytic degradation of carbamazepine over FeS(2)/Fe(2)O(3)/organic acid with H(2)O(2)in-situ generation
Author(s):		Gong C; Zhai J; Wang X; Zhu W; Yang D; Luo Y; Gao X;
Address:		"Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, PR China; The Innovation Team for Volatile Organic Compounds Pollutants Control and Resource Utilization of Yunnan Province, Kunming, 650500, PR China; The Higher Educational Key Laboratory for Odorous Volatile Organic Compounds Pollutants Control of Yunnan Province, Kunming, 650500, PR China. Electronic address: 1046434858@qq.com. Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, PR China; The Innovation Team for Volatile Organic Compounds Pollutants Control and Resource Utilization of Yunnan Province, Kunming, 650500, PR China; The Higher Educational Key Laboratory for Odorous Volatile Organic Compounds Pollutants Control of Yunnan Province, Kunming, 650500, PR China. Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, PR China. Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, PR China; The Innovation Team for Volatile Organic Compounds Pollutants Control and Resource Utilization of Yunnan Province, Kunming, 650500, PR China; The Higher Educational Key Laboratory for Odorous Volatile Organic Compounds Pollutants Control of Yunnan Province, Kunming, 650500, PR China. Electronic address: gaoxiaoyaya@126.com"
Journal Title:		Chemosphere
Year:		2022
Volume:		20220828
Issue:		Pt 4
Page Number:		136199 -
DOI:		10.1016/j.chemosphere.2022.136199
ISSN/ISBN:		1879-1298 (Electronic) 0045-6535 (Linking)
Abstract:		"Herein, a heterogeneous photo-Fenton and photo-catalytic system was constructed using oxide pyrite (FeS(2)/Fe(2)O(3)) mineral and organic acids including tartaric acid (TA), ascorbic acid (AA), and citric acid (CA). In the proposed system, FeS(2)/Fe(2)O(3) can be successfully activated through irradiation to generate photogenerated carriers, which generated H(2)O(2)in-situ through the reduction reactions between e(-) and O(2). The addition of organic acids enhanced the dissolution of iron from FeS(2)/Fe(2)O(3). Based on the iron and in-situ generated H(2)O(2), *OH was produced through a photo-Fenton reaction. Furthermore, h(+), e(-), and *O(2)(-), which were generated through the photo-catalytic activation of FeS(2)/Fe(2)O(3), also played a certain role in the degradation of carbamazepine (CBZ). Therefore, the synergistic photo-Fenton and photo-catalytic reaction improved the degradation of CBZ, with the degradation efficiencies of 86%, 62%, and 68% in FeS(2)/Fe(2)O(3)/TA, FeS(2)/Fe(2)O(3)/AA, and FeS(2)/Fe(2)O(3)/CA systems, respectively. This investigation provides an innovative strategy for the removal of organic pollutants using natural minerals"
Keywords:		Ascorbic Acid Carbamazepine Citric Acid *Environmental Pollutants *Hydrogen Peroxide Iron Minerals Oxides FeS(2)/Fe(2)O(3) Heterogeneous photo-Fenton Organic acids Photocatalysis;
Notes:		"MedlineGong, Chao Zhai, Jinli Wang, Xi Zhu, Wenjie Yang, Daoli Luo, Yongming Gao, Xiaoya eng England 2022/08/29 Chemosphere. 2022 Nov; 307(Pt 4):136199. doi: 10.1016/j.chemosphere.2022.136199. Epub 2022 Aug 28"