Spinel cobalt ferrite-based porous activated carbon in conjunction with UV light irradiation for boosting peroxymonosulfate oxidation of bisphenol A.

Autor: Kakavandi B; Research Center for Health, Safety and Environment, Alborz University of Medical Sciences, Karaj, Iran; Department of Environmental Health Engineering, Alborz University of Medical Sciences, Karaj, Iran., Zehtab Salmasi M; Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran., Ahmadi M; Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran., Naderi A; Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran; Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran., Roccaro P; Department of Civil Engineering and Architecture, University of Catania, Viale Andrea Doria 6, 95125 Catania, Italy., Bedia J; Chemical Engineering Department, Universidad Autónoma de Madrid, Campus Cantoblanco, E-28049 Madrid, Spain., Hasham Firooz M; Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran., Rezaei Kalantary R; Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran; Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran. Electronic address: rezaei.r@iums.ac.ir.
Jazyk: angličtina
Zdroj: Journal of environmental management [J Environ Manage] 2023 Sep 15; Vol. 342, pp. 118242. Date of Electronic Publication: 2023 Jun 07.
DOI: 10.1016/j.jenvman.2023.118242
Abstrakt: Developing heterogeneous catalysts with high performance for peroxymonosulfate (PMS) activation to decontaminate organic pollutants from wastewater is of prominent importance. In this study, spinel cobalt ferrite (CoFe 2 O 4 ) materials were coated on the surface of powdered activated carbon (CoFe 2 O 4 @PAC) via the facile co-precipitation method. The high specific surface area of PAC was beneficial for the adsorption of both bisphenol A (BP-A) and PMS molecules. The CoFe 2 O 4 @PAC-mediated PMS activation process under UV light could effectively eliminate 99.4% of the BP-A within 60 min of reaction. A significant synergy effect was attained between CoFe 2 O 4 and PAC towards PMS activation and subsequent elimination of BP-A. Comparative tests demonstrated that the heterogeneous CoFe 2 O 4 @PAC catalyst had a better degradation performance in comparison with its components and homogeneous catalysts (Fe, Co, and, Fe + Co ions). The formed by-products and intermediates during BP-A decontamination were evaluated using LC/MS analysis, and then a possible degradation pathway was proposed. Moreover, the prepared catalyst exhibited excellent performance in recyclability with slight leaching amounts of Co and Fe ions. A TOC conversion of 38% was obtained after five consecutive reaction cycles. It can be concluded that the PMS photo-activation process via the CoFe 2 O 4 @PAC catalyst can be utilized as an effective and promising method for the degradation of organic contaminants from polluted-water resources.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2023 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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