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- Title
Ce to enhance photocatalytic performance by CuO/CeO<sub>2</sub> of peroxymonosulfate activation for rapid degradation of tetracycline hydrochloride.
- Authors
Li, Z. L.; Liu, X. R.; Liu, Y. B.; Li, S. Y.; Yuan, S. Y.; Zhang, Z. R.; Qi, X. N.
- Abstract
CuO/CeO2 microsphere was viewed as an economical and environment-friendly heterogeneous photocatalyst, which was synthesized via a co-precipitation technique. The physicochemical properties of as-prepared samples were characterized by various methods. 20 mg/L of TC-HCl was degraded completely within 20 min at 1 mmol peroxymonosulfate (PMS) under UV-visible light. The scavenging experiments and electron paramagnetic resonance (EPR) technologies revealed that SO4· −, O2· − and ·OH were involved as active species in the CuO/CeO2/PMS system, which were responsible for efficient decomposition of TC-HCl. Moreover, it was applied to treat raw water containing TC-HCl, all the removal efficiencies were more than 89% within 22 min. The possible photocatalytic degradation mechanism for the TC-HCl was investigated. CuO/CeO2 exhibited significant light trapping enhancement after Ce introduced, which lead to enhance the photocatalytic performance. Therefore, the CuO/CeO2 can be utilized as an economical photocatalyst to activate PMS and decompose TC-HCl in aqueous solution.
- Subjects
TETRACYCLINE; PEROXYMONOSULFATE; ELECTRON paramagnetic resonance; TETRACYCLINES; PHOTODEGRADATION; AQUEOUS solutions
- Publication
Journal of Materials Science: Materials in Electronics, 2023, Vol 34, Issue 5, p1
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-022-09775-5