학술논문
Advanced degradation of organic pollutants using sonophotocatalytic peroxymonosulfate activation with CoFe 2 O 4 /Cu- and Ce-doped SnO 2 composites.
Document Type
Academic Journal
Author
Hjiri M; Department of Physics, College of Sciences, Imam Mohammad Ibn Saud Islamic University (IMSIU), SA-11623, Riyadh, Saudi Arabia; Laboratory of Physics of Materials and Nanomaterials Applied at Environment (LaPhyMNE), Faculty of Sciences in Gabes, Gabes University, TNSA-6079, Gabes, Tunisia.; Bujaldón R; Grup d'Electrodeposició de Capes Primes i Nanoestructures (GE-CPN), Departament de Ciència de Materials i Química Física, Universitat de Barcelona, Martí i Franquès, 1, E-08028, Barcelona, Catalonia, Spain; Institute of Nanoscience and Nanotechnology (IN2UB), Universitat de Barcelona, Martí i Franquès, 1, E-08028, Barcelona, Catalonia, Spain.; Lloreda J; Grup d'Electrodeposició de Capes Primes i Nanoestructures (GE-CPN), Departament de Ciència de Materials i Química Física, Universitat de Barcelona, Martí i Franquès, 1, E-08028, Barcelona, Catalonia, Spain; Institute of Nanoscience and Nanotechnology (IN2UB), Universitat de Barcelona, Martí i Franquès, 1, E-08028, Barcelona, Catalonia, Spain.; Gómez E; Grup d'Electrodeposició de Capes Primes i Nanoestructures (GE-CPN), Departament de Ciència de Materials i Química Física, Universitat de Barcelona, Martí i Franquès, 1, E-08028, Barcelona, Catalonia, Spain; Institute of Nanoscience and Nanotechnology (IN2UB), Universitat de Barcelona, Martí i Franquès, 1, E-08028, Barcelona, Catalonia, Spain.; Serrà A; Grup d'Electrodeposició de Capes Primes i Nanoestructures (GE-CPN), Departament de Ciència de Materials i Química Física, Universitat de Barcelona, Martí i Franquès, 1, E-08028, Barcelona, Catalonia, Spain; Institute of Nanoscience and Nanotechnology (IN2UB), Universitat de Barcelona, Martí i Franquès, 1, E-08028, Barcelona, Catalonia, Spain. Electronic address: a.serra@ub.edu.
Source
Publisher: Elsevier Science Ltd Country of Publication: England NLM ID: 0320657 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-1298 (Electronic) Linking ISSN: 00456535 NLM ISO Abbreviation: Chemosphere Subsets: MEDLINE
Subject
Language
English
Abstract
The rampant upsurge of organic pollutants in aqueous media has become one of the major concerns nowadays. Finding non-specific catalysts that can target a wide range of organic pollutants is a key challenge. Eco-friendly oxidative radicals, such as promoted by peroxymonosulfate (PMS), are necessary for efficient water decontamination. We propose a multicomponent composite catalyst for activating PMS using a dual strategy of sonophotocatalysis. The composite integrates cobalt ferrite and Cu- or Ce-doped SnO 2 , with the at. % of doping metal and the mixture ratio carefully balanced. The top-performing architectures were able to decompose rhodamine B (20 ppm), a representative pollutant, in under 3 min and achieve over 70% mineralization in just 5 min. The synthesized nanocomposites demonstrated exceptional sonophotocatalytic performance, even when treating complex and diverse multipollutant solutions (80 ppm), achieving over 75% mineralization after 150 min. Considering their high stability and reusability, the proposed CoFe 2 O 4 /Cu- and Ce-doped SnO 2 materials are among the state-of-the-art heterogeneous catalysts for mineralizing organic pollutants through PMS activation.
Competing Interests: Declaration of competing interest Authors declare no conflict of interest.
(Copyright © 2024 The Authors. Published by Elsevier Ltd.. All rights reserved.)
Competing Interests: Declaration of competing interest Authors declare no conflict of interest.
(Copyright © 2024 The Authors. Published by Elsevier Ltd.. All rights reserved.)