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Activation of Peracetic Acid by CoFe2O4 for Efficient Degradation of Ofloxacin: Reactive Species and Mechanism.
Li, Rong; Lu, Xing; Gao, Jinxiang; Chen, Yifan; Pan, Shunlong.
Afiliación
  • Li R; School of Environmental Science and Engineering, Nanjing Tech University, Nanjing 211816, China.
  • Lu X; School of Environmental Science and Engineering, Nanjing Tech University, Nanjing 211816, China.
  • Gao J; School of Environmental Science and Engineering, Nanjing Tech University, Nanjing 211816, China.
  • Chen Y; School of Environmental Science and Engineering, Nanjing Tech University, Nanjing 211816, China.
  • Pan S; School of Environmental Science and Engineering, Nanjing Tech University, Nanjing 211816, China.
Molecules ; 28(23)2023 Dec 02.
Article en En | MEDLINE | ID: mdl-38067634
Peroxyacetic acid (PAA)-based advanced oxidation processes (AOPs) have attracted much attention in wastewater treatment by reason of high selectivity, long half-life reactive oxygen species (ROS), and wider applicability. In this study, cobalt ferrite (CoFe2O4) was applied to activate PAA for the removal of ofloxacin (OFX). The degradation of OFX could reach 83.0% via the CoFe2O4/PAA system under neutral conditions. The low concentration of co-existing anions and organic matter displayed negligible influence on OFX removal. The contributions of hydroxyl radicals (·OH), organic radicals (R-O·), and other reactive species to OFX degradation in CoFe2O4/PAA were systematically evaluated. Organic radicals (especially CH3C(O)OO·) and singlet oxygen (1O2) were verified to be the main reactive species leading to OFX destruction. The Co(II)/Co(III) redox cycle occurring on the surface of CoFe2O4 played a significant role in PAA activation. The catalytic performance of CoFe2O4 remained above 80% after five cycles. Furthermore, the ecotoxicity of OFX was reduced after treatment with the CoFe2O4/PAA system. This study will facilitate further research and development of the CoFe2O4/PAA system as a new strategy for wastewater treatment.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Contaminantes Químicos del Agua / Purificación del Agua Idioma: En Revista: Molecules Asunto de la revista: BIOLOGIA Año: 2023 Tipo del documento: Article País de afiliación: China Pais de publicación: Suiza
Texto completo
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Imprimir
XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Contaminantes Químicos del Agua / Purificación del Agua Idioma: En Revista: Molecules Asunto de la revista: BIOLOGIA Año: 2023 Tipo del documento: Article País de afiliación: China Pais de publicación: Suiza