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2024-04-01

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cc-by-nc-nd (c) Hjiri, Mokhtar, et al., 2024
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/216204

Advanced degradation of organic pollutants using sonophotocatalytic peroxymonosulfate activation with CoFe2O4/Cu- and Ce-doped SnO2 composites

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Recurs relacionat

https://doi.org/10.1016/j.chemosphere.2024.141656

Resum

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 SnO2, 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 CoFe2O4/Cu- and Ce-doped SnO2 materials are among the state-of-the-art heterogeneous catalysts for mineralizing organic pollutants through PMS activation.

Matèries

Contaminants, Sulfats, Depuració de l'aigua

Matèries (anglès)

Pollutants, Sulfates, Water purification

Citació

Col·leccions

Articles publicats en revistes (Ciència dels Materials i Química Física)
Articles publicats en revistes (Institut de Nanociència i Nanotecnologia (IN2UB))

Citació

HJIRI, Mokhtar, et al. Advanced degradation of organic pollutants using sonophotocatalytic peroxymonosulfate activation with CoFe2O4/Cu- and Ce-doped SnO2 composites. Chemosphere. 2024. Vol. 354, num. 1-11. ISSN 0045-6535. [consulted: 18 of August of 2026]. Available at: https://hdl.handle.net/2445/216204

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