Degradation of Antibiotics via UV-Activated Peroxodisulfate or Peroxymonosulfate: A Review

The ultraviolet (UV)/H2O2, UV/O3, UV/peroxodisulfate (PDS) and UV/peroxymonosulfate (PMS) methods are called UV-based advanced oxidation processes. In the UV/H2O2 and UV/O3 processes, the free radicals generated are hydroxyl radicals (•OH), while in the UV/PDS and UV/PMS processes, sulfate radicals...

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Bibliographic Details
Published in:Catalysts 2022-09, Vol.12 (9), p.1025
Main Authors: Song, Tiehong, Li, Guanqiao, Hu, Ruihua, Liu, Ying, Liu, Hongxu, Gao, Yanjiao
Format: Article
Language:English
Subjects:
Aluminum
Analysis
Antibiotics
Carbon
Catalysts
Chemical reactions
Degradation
Free radicals
Hydrogen peroxide
hydroxyl radical
Hydroxyl radicals
Identification and classification
Lamps
Light emitting diodes
Oxidation
Oxides
peroxodisulfate
peroxymonosulfate
Photocatalysis
Properties
sulfate radical
Sulfates
Ultraviolet radiation
Water treatment
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Summary:The ultraviolet (UV)/H2O2, UV/O3, UV/peroxodisulfate (PDS) and UV/peroxymonosulfate (PMS) methods are called UV-based advanced oxidation processes. In the UV/H2O2 and UV/O3 processes, the free radicals generated are hydroxyl radicals (•OH), while in the UV/PDS and UV/PMS processes, sulfate radicals (SO4•−) predominate, accompanied by •OH. SO4•− are considered to be more advantageous than •OH in degrading organic substances, so the researches on activation of PDS and PMS have become a hot spot in recent years. Especially the utilization of UV-activated PDS and PMS in removing antibiotics in water has received much attention. Some influencing factors and mechanisms are constantly investigated and discussed in the UV/PDS and UV/PMS systems toward antibiotics degradation. However, a systematic review about UV/PDS and UV/PMS in eliminating antibiotics is lacking up to now. Therefore, this review is intended to present the properties of UV sources, antibiotics, and PDS (PMS), to discuss the application of UV/PDS (PMS) in degrading antibiotics from the aspects of effect, influencing factors and mechanism, and to analyze and propose future research directions.
ISSN:2073-4344
2073-4344
DOI:10.3390/catal12091025