Number of the records: 1
The Role of TiO2 Photocatalyst in Degradation of Halogenated Phenols: Experimental, DFT and Antibacterial Study
- 1.
SYSNO ASEP 0569770 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title The Role of TiO2 Photocatalyst in Degradation of Halogenated Phenols: Experimental, DFT and Antibacterial Study Author(s) Belháčová, Lenka (UFCH-W) SAI, ORCID
Supiňková, Taťána (UFCH-W) ORCID
Panáček, A. (CZ)
Hochvaldová, L. (CZ)
Prucek, R. (CZ)
Žouželka, Radek (UFCH-W) RID
Rathouský, Jiří (UFCH-W) RID, ORCIDArticle number 119134 Source Title Applied Catalysis A - General. - : ELSEVIER SCIENCE BV - ISSN 0926-860X
Roč. 656, APR 2023 (2023)Number of pages 9 s. Language eng - English Country NL - Netherlands Keywords Photocatatysis ; TiO2 ; DFT ; 4-chlorophenol Subject RIV CF - Physical ; Theoretical Chemistry OECD category Physical chemistry R&D Projects EF16_013/0001821 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LM2018124 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Limited access Institutional support UFCH-W - RVO:61388955 UT WOS 000994625700001 EID SCOPUS 85149828026 DOI 10.1016/j.apcata.2023.119134 Annotation 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. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2024 Electronic address https://hdl.handle.net/11104/0341105
Number of the records: 1