Overall
- Language
- English
- Conflict of Interest
- In relation to this article, we declare that there is no conflict of interest.
- Publication history
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Received February 5, 2025
Revised April 26, 2025
Accepted May 14, 2025
Available online September 25, 2025
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Activation of Peroxymonosulfate by Co–Al-LDH@PU Membrane for Effi cient Removal of Tetracycline Hydrochloride
https://doi.org/10.1007/s11814-025-00486-1
Abstract
Immobilizing the activator on the carrier is an eff ective strategy to solve the diffi cult recovery and secondary pollution of activator
in advanced oxidation process. In this study, cobalt–aluminum-layered double hydroxide (activator) was immobilized
on a PU membrane carrier (Co–Al-LDH@PU membrane) by a hydrothermal in situ growth technique to form a recyclable
peroxymonosulfate (PMS) activator. The as-prepared Co–Al-LDH@PU membrane exhibited an excellent ability to activate
PMS for the removal of tetracycline hydrochloride (TC). 97.20% of TC (30 mg L −1 ) was eliminated with Co–Al-LDH@
PU membrane (3 × 3 cm 2 ) and 1.6 mM PMS at pH 5.5 in 30 min. Singlet oxygen ( 1 O 2 ) was verifi ed as dominant reactive
oxygen species responsible for TC removal via quenching tests. Mechanism investigation suggested that the redox cycle of
Co 2+ /Co 3+ on the surface of Co–Al-LDH@PU membrane was crucial for PMS activation. Meanwhile, Co–Al-LDH@PU
membrane displayed the ideal reusability and versatilit
