The Role of TiO2 Photocatalyst in Degradation of Halogenated Phenols: Experimental, DFT and Antibacterial Study

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F23%3A00569770" target="_blank" >RIV/61388955:_____/23:00569770 - isvavai.cz</a>
Alternative codes found
RIV/61989592:15310/23:73621285
Result on the web
<a href="https://hdl.handle.net/11104/0341105" target="_blank" >https://hdl.handle.net/11104/0341105</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.apcata.2023.119134" target="_blank" >10.1016/j.apcata.2023.119134</a>

Result language
angličtina
Original language name
The Role of TiO2 Photocatalyst in Degradation of Halogenated Phenols: Experimental, DFT and Antibacterial Study
Original language description
Degradation of industrial pollutants 4-chlorophenol and 4-bromophenol by heterogeneous photocatalysis using different size and allotropes of TiO2 was investigated. The physico-chemical properties of a wide range of TiO2 nanoparticles were correlated with their photocatalytic activity. The increase in anatase particle size led to an enhancement of the halophenols degradation rate, oppositely to rutile. Based on DFT modelling and experimental data, alternative degradation pathways were proposed, leading either to hydroxylation of halophenol aromatic ring (large nanoparticles), or to direct decarboxylation (small nanoparticles). The participation of hydroxyl radicals was assessed with radical scavenger. The antibacterial activity of nanoparticles and chemical substances was investigated. Changes in toxicity during photocatalytic process were evaluated for selected photocatalysts. The results demonstrate that not only crystalline form and/or constitution of the photocatalyst, but also other properties as well as the treatment duration are important parameters in its performance and should be considered in development of photocatalytic applications.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10403 - Physical chemistry

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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