INVESTIGATION OF TITANIUM-DIOXIDE COATINGS ON MEMBRANE FILTRATION PROPERTIES

Authors

  • Ildikó KOVÁCS Department of Process Engineering, Faculty of Engineering, University of Szeged, Hungary. Corresponding author: zsizsu@mk.u-szeged.hu.
  • Sándor BESZÉDES Department of Process Engineering, Faculty of Engineering, University of Szeged, Hungary. Email: 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. Email: 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. Email: 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. Email: 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. Email: 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. Email: 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. Email: zsizsu@mk.u-szeged.hu. https://orcid.org/0000-0001-8130-7482

DOI:

https://doi.org/10.24193/subbchem.2017.1.22

Keywords:

membrane filtration, TiO2 coated membranes, photocatalysis, azo dye, Acid Red 1

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.

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STUDIA UBB CHEMIA, Volume 62 (LXII), No. 1, March 2017

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Published

2017-03-30

How to Cite

KOVÁCS, I. ., BESZÉDES, S. ., KERTÉSZ, S. ., VERÉB, G. ., HODÚR, C. ., PAPP, I. Z. ., … LÁSZLÓ, Z. . (2017). INVESTIGATION OF TITANIUM-DIOXIDE COATINGS ON MEMBRANE FILTRATION PROPERTIES. Studia Universitatis Babeș-Bolyai Chemia, 62(1), 249–259. https://doi.org/10.24193/subbchem.2017.1.22

Issue

Volume 62, No. 1, 2017

Section

Articles

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