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Enhanced Tetracycline Hydrochloride Degradation at Near Neutral Conditions with Feo Modified BiTaOcl Catalyst: Coupling the Photocatalytic and Fenton Oxidation

SSRN, ISSN: 1556-5068
2024
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Article Description

The efficient regeneration of Fe2+ active sites in heterogeneous catalysts is of great significance for the photo-Fenton progress. Herein, amorphous FeOx as one efficient cocatalyst was anchored on the Bi4TaO8Cl nanosheets to boost the activation of H2O2 and the separation of photogenerated carriers. The surface-exposed FeOx can produce Fe2+ active sites by extracting the photogenerated electrons from Bi4TaO8Cl. As a result, the redox cycle of Fe3+/Fe2+ was built and the carriers were separated to boost the continuous photo-Fenton degradation. The optimized FeOx/Bi4TaO8Cl sample exhibited the highest degradation ratio of about 83.5% in 20 min, which was nearly four times that of the pure Bi4TaO8Cl. In addition, the better performance of FeOx/Bi4TaO8Cl catalyst under near-neutral conditions also sheds new insights about the design of efficient photo-Fenton catalysts that can work under mild conditions.

Bibliographic Details

Honghai Miao; Guixin Zeng; Huibin Zong; Zhao Mo; Xianglin Zhu; Dionysios D. Dionysiou; Hui Xu

Elsevier BV

Multidisciplinary; Fenton oxidation; photocatalytic; FeOx cocatalyst; Carrier separation; Heterogeneous catalysts; Fe3+/Fe2+ cycle

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