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Solar light mediated anthracene abatement in aerated aqueous media using a thermoplastic nanocomposite photocatalyst
- Source :
- Digital.CSIC. Repositorio Institucional del CSIC, instname
- Publication Year :
- 2022
- Publisher :
- Elsevier BV, 2022.
-
Abstract
- Polycyclic aromatic hydrocarbons (PAHs) are the most widespread xenobiotic pollutants in water and their abatement usually involves expensive and energy-consuming treatments. In this work, anthracene (AN) was selected as the recalcitrant model of PAHs and its solar light-stimulated heterogeneous photocatalytic abatement in aerated aqueous media was investigated using a new TiO derived thermoplastic nanocomposite in thin film form. The results were also compared with the benchmark TiO photocatalyst in slurry form. Finally, the possible contribution of reactive intermediates such as hydroxyl radical, AN radical cation and singlet oxygen, was investigated by using a hydroxyl radical trap and laser flash photolysis. Based on the obtained results, a feasible mechanism for AN photodegradation, which involves hydroxyl radical as the key oxidizing species is proposed.<br />This research was funded by the University of Catania (Piano di incentivi per la ricerca di Ateneo, PIACERI–Linea 2).
- Subjects :
- Anthracenes
Environmental Engineering
Photolysis
Light
Hydroxyl Radical
Health, Toxicology and Mutagenesis
Public Health, Environmental and Occupational Health
Water
General Medicine
General Chemistry
Anthracene photodegradation
Pollution
Water remediation
Solar-mediated depollution
Nanocomposites
Xenobiotic water pollutant
Photodegradation mechanism
Thermoplastic nanocomposite
Environmental Chemistry
Polycyclic Aromatic Hydrocarbons
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- Digital.CSIC. Repositorio Institucional del CSIC, instname
- Accession number :
- edsair.doi.dedup.....041ed34be57008b74e2dcf03f5d95e8b