期刊
MOLECULES
卷 27, 期 6, 页码 -出版社
MDPI
DOI: 10.3390/molecules27061874
关键词
benzophenones; photodegradation; advanced oxidation processes; photocatalytic degradation
资金
- Slovenian Research Agency (ARRS) [P3-0388]
This review examines the presence and hazards of benzophenone-type UV filters in the environment and discusses their degradation kinetics and mechanisms under UV irradiation. It also explores the applications of UV-based advanced oxidation processes and nanoparticle photocatalysis for the degradation of these UV filters.
Benzophenone (BP) type UV filters are common environmental contaminants that are posing a growing health concern due to their increasing presence in water. Different studies have evidenced the presence of benzophenones (BP, BP-1, BP-2, BP-3, BP-4, BP-9, HPB) in several environmental matrices, indicating that conventional technologies of water treatment are not able to remove them. It has also been reported that these compounds could be associated with endocrine-disrupting activities, genotoxicity, and reproductive toxicity. This review focuses on the degradation kinetics and mechanisms of benzophenone-type UV filters and their degradation products (DPs) under UV and solar irradiation and in UV-based advanced oxidation processes (AOPs) such as UV/H2O2, UV/persulfate, and the Fenton process. The effects of various operating parameters, such as UV irradiation including initial concentrations of H2O2, persulfate, and Fe2+, on the degradation of tested benzophenones from aqueous matrices, and conditions that allow higher degradation rates to be achieved are presented. Application of nanoparticles such as TiO2, PbO/TiO2, and Sb2O3/TiO2 for the photocatalytic degradation of benzophenone-type UV filters was included in this review.
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