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Piezo-enhanced photocatalytic diclofenac mineralization over ZnO.

ABSTRACT: The degradation of diclofenac has been realized for the first time by a piezo-enhanced sonophotocatalytic approach based on ZnO. The sonophotocatalytic degradation showed a slight enhancement in the degradation of the parent compound, whereas strong synergistic effects were observed for the mineralization process when suitable ZnO morphologies are used, reaching 70% of complete degradation of 25 ppm diclofenac using 0.1 g/L ZnO in 360 min. Tests in a complex water matrix show enhanced diclofenac removal, outperforming a TiO₂ benchmark photocatalyst. These promising experimental results promote this process as a good alternative to traditional degradation approaches for remediation of real water matrices.

SUBMITTER: Meroni D

PROVIDER: S-EPMC8193124 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature

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Piezo-enhanced photocatalytic diclofenac mineralization over ZnO.

Meroni Daniela D Bianchi Claudia L CL Boffito Daria C DC Cerrato Giuseppina G Bruni Anna A Sartirana Marta M Falletta Ermelinda E

Ultrasonics sonochemistry 20210601

The degradation of diclofenac has been realized for the first time by a piezo-enhanced sonophotocatalytic approach based on ZnO. The sonophotocatalytic degradation showed a slight enhancement in the degradation of the parent compound, whereas strong synergistic effects were observed for the mineralization process when suitable ZnO morphologies are used, reaching 70% of complete degradation of 25 ppm diclofenac using 0.1 g/L ZnO in 360 min. Tests in a complex water matrix show enhanced diclofenac ...[more]

PMID: 34111723

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