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Investigation of a TiO2 photocatalyst immobilized with poly(vinyl alcohol)
Department of General and Inorganic Chemistry, Institute of Chemistry, University of Pannonia, Hungary.
Department of General and Inorganic Chemistry, Institute of Chemistry, University of Pannonia, Hungary.
Department of General and Inorganic Chemistry, Institute of Chemistry, University of Pannonia, Hungary.
Department of Analytical Chemistry, Institute of Chemistry, University of Pannonia, Hungary.ORCID iD: 0000-0002-0271-4846
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2017 (English)In: Catalysis Today, ISSN 0920-5861, E-ISSN 1873-4308, Vol. 284, 179-186 p.Article in journal (Refereed) Published
Abstract [en]

Immobilization of TiO2 photocatalyst was realized with application of poly(vinyl alcohol) (PVA). However, these PVA-based foils were too instable to be used for photocatalytic water cleaning. Their stability could be significantly enhanced by a thermal treatment, but this procedure generated various water-soluble derivatives such as aldehydes, ketones, and aromatic species. Photocatalytic pre-treatment of the foils proved to be suitable to remove these products from the surface of the composite. After three subsequent pre-treating cycles of irradiation and rinsing, the PVA-TiO2 foil became applicable for photocatalytic degradation of Triton X-100, a widely used non-ionic detergent. The composite catalyst kept its stability and efficiency even after some cycles of re-usage, while its surface underwent a perceptible, although quantitatively negligible degradation.

Place, publisher, year, edition, pages
Elsevier, 2017. Vol. 284, 179-186 p.
Keyword [en]
TiO based photocatalysis, Immobilization, Thermal decomposition of PVA, Organic pollutant, Triton X-100
National Category
Materials Chemistry Other Physics Topics
Research subject
Applied Physics
Identifiers
URN: urn:nbn:se:ltu:diva-66489DOI: 10.1016/j.cattod.2016.11.050OAI: oai:DiVA.org:ltu-66489DiVA: diva2:1155546
Available from: 2017-11-08 Created: 2017-11-08 Last updated: 2017-11-24Bibliographically approved

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