INVESTIGATION OF TITANIUM-DIOXIDE COATINGS ON MEMBRANE FILTRATION PROPERTIES
Date
2017-03-30
Authors
Ildikó KOVÁCS
Sándor BESZÉDES
Szabolcs KERTÉSZ
Gábor VERÉB
Cecilia HODÚR
Ibolya Zita PAPP
Ákos KUKOVECZ
Zsuzsanna LÁSZLÓ
Journal Title
Journal ISSN
Volume Title
Publisher
STUDIA UBB CHEMIA. Published by Babeş-Bolyai University
Abstract
In this study, synthesized TiO₂ nanorods and commercial Aeroxide P25 TiO₂ nanoparticles were deposited on polyethersulfone (PES) membrane surfaces to compare their photocatalytic activity and effects on membrane surface and filtration properties. The catalysts were deposited on the membrane surface by physical deposition. The effect of the TiO₂ amount on the stability of the catalyst layer and its effect on membrane resistance in presence and absence of UV irradiation were investigated. 1.2 mg/cm² catalyst coverage proved to be a minimal appropriate coverage to prevent membrane damage during UV irradiation. The catalysts formed hydrophilic layers on the surface, and in case of both catalyst the surface free energy increased compared to the neat membrane. The photocatalytic activity and retention of the modified membranes were tested spectrophotometrically by using Acid Red1, azo dye.
Description
STUDIA UBB CHEMIA, LXII, 1, 2017 (p. 249-259), DOI:10.24193/subbchem.2017.1.22
Ildikó KOVÁCS
Department of Process Engineering, Faculty of Engineering, University of Szeged, Hungary
Sándor BESZÉDES
Department of Process Engineering, Faculty of Engineering, University of Szeged, Hungary, beszedes@mk.u-szeged.hu
https://orcid.org/0000-0003-2301-765X
Szabolcs KERTÉSZ
Department of Process Engineering, Faculty of Engineering, University of Szeged, Hungary, kertesz@mk.u-szeged.hu
https://orcid.org/0000-0001-9760-3008
Gábor VERÉB
Department of Process Engineering, Faculty of Engineering, University of Szeged, Hungary, uh.degezs-u.km@gberev.hu
https://orcid.org/0000-0001-9642-1851
Cecilia HODÚR
Department of Process Engineering, Faculty of Engineering, University of Szeged, Hungary, hodur@mk.u-szeged.hu
https://orcid.org/0000-0002-2028-6304
Ibolya Zita PAPP
Department of Applied and Environmental Chemistry, University of Szeged, Hungary, pappibolyazita@gmail.com
https://orcid.org/0000-0001-9202-9035
Ákos KUKOVECZ
Department of Applied and Environmental Chemistry, University of Szeged; MTA-SZTE "Lendület" Porous Nanocomposites Research Group, Szeged, Hungary, kakos@chem.u-szeged.hu
https://orcid.org/0000-0003-0716-9557
Zsuzsanna LÁSZLÓ
Department of Process Engineering, Faculty of Engineering, University of Szeged, Hungary
*Corresponding author: zsizsu@mk.u-szeged.hu
https://orcid.org/0000-0001-8130-7482
Keywords
membrane filtration, TiO₂ coated membranes, photocatalysis, azo dye, Acid Red 1
Citation
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