Integrated ceramic membrane coupling with CuO@ATT/AC for peroxymonosulfate activation to remove sulfadiazine in water

[Display omitted] •An integrated membrane was developed by loading a compound catalyst (CuO@ATT/AC) into the membrane channels.•IM-CuO@ATT/AC demonstrated efficient activation of PMS and remarkable removal of SDZ under various conditions.•1O2 and HVMO species were elucidated as the primary reactive...

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Bibliographic Details
Published in:Separation and purification technology 2025-04, Vol.356, p.130020, Article 130020
Main Authors: Wang, Songxue, Xia, Jingjing, Wang, Yiding, Zhu, Jinfeng, Ming, Ming, Fang, Yingxuan, Huang, Rui, Shan, Sujie, Yan, Boyin, Xia, Wenxiang, Tian, Jiayu
Format: Article
Language:English
Subjects:
Compound catalyst
Integrated ceramic membrane
Peroxymonosulfate activation
Sulfadiazine removal
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Summary:[Display omitted] •An integrated membrane was developed by loading a compound catalyst (CuO@ATT/AC) into the membrane channels.•IM-CuO@ATT/AC demonstrated efficient activation of PMS and remarkable removal of SDZ under various conditions.•1O2 and HVMO species were elucidated as the primary reactive species in the IM-CuO@ATT/AC/PMS system.•IM-CuO@ATT/AC exhibited antifouling performance better than that of the virgin membrane. In this study, a novel ceramic membrane integrating filtration and peroxymonosulfate (PMS) activation was fabricated by loading the compound catalyst (CuO@ATT/AC) into the membrane channels. The integrated ceramic membrane (IM-CuO@ATT/AC) exhibited remarkable efficiency for PMS activation and was applied to the removal of sulfadiazine (SDZ), demonstrating significant performance under various operational conditions. Through the utilization of free radical trapping experiments and electron paramagnetic resonance (EPR) tests, it had been conclusively demonstrated that the predominant reactive species in the IM-CuO@ATT/AC/PMS system were singlet oxygen (1O2) and Cu(III). And the insights into a potential degradation pathway for SDZ was further provided. The IM-CuO@ATT/AC also exhibited enhanced antifouling performance when tested with real water in the presence of PMS. The present study introduces a new strategy to facilitate the advancement of integrated ceramic membrane processes and the utilization of catalytic membrane filtration technology.
ISSN:1383-5866
DOI:10.1016/j.seppur.2024.130020