WO3复合Eu掺杂g-C3N4催化剂的制备及光催化降解氧氟沙星

doi:10.11896/cldb.24050169

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Abstract Photocatalysis technology possesses the advantages of facile operation, cost-effectiveness, and absence of secondary pollution, exhibiting remarkable performance in the treatment of antibiotic wastewater. WO₃ is a metal oxide with robust oxidation capacity that is non-precious, non-toxic, and harmless. Eu has its unique 4f electron configuration which enables it to serve as an electron capture center with strong electron capturing ability. In this work, g-C₃N₄ was modified by incorporating WO₃ and Eu. WO₃/Eu/g-C₃N₄ catalysts with varying composite ratios were prepared to construct Z-type heterojunctions. The prepared samples were employed for photocatalytic degradation of ofloxacin solution. The catalysts consisting of 3% WO₃/Eu/g-C₃N₄ exhibited the best photocatalytic activity with a degradation rate of 80.71% after 50 min of illumination. After four stabilization cycle tests, the catalysts remained excellent photocatalytic activity indicating their good cycling stability. Free radical trapping experiments revealed that ·O₂^- and h⁺ were identified as the main active species, and a mechanism for photocatalytic degradation ofloxacin was proposed. This study provides novel insights into optimizing photocatalytic activity of the catalysts and their application in antibiotic wastewater treatment.

Key words： graphite carbon nitride (g-C₃N₄) rare earth element tungsten trioxide ofloxacin photocatalysis

Published: 10 July 2025 Online: 2025-07-21

CLC number:

O643

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	Articles by authors
	ZHANG Xiaojun
	WEI Huizhen
	WANG Weixue
	SUN Mojie

Cite this article:

ZHANG Xiaojun,WEI Huizhen,WANG Weixue, et al. Preparation of WO₃ Composite Eu Doped g-C₃N₄ Catalysts and Photocatalytic Degradation of Ofloxacin[J]. Materials Reports, 2025, 39(13): 24050169-5.

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https://www.mater-rep.com/EN/10.11896/cldb.24050169 OR https://www.mater-rep.com/EN/Y2025/V39/I13/24050169

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