Nascimben Santos, Erika and Fazekas, Ákos Ferenc and Hodúr, Cecilia and László, Zsuzsanna and Beszédes, Sándor and Scheres Firak, Daniele and Gyulavári, Tamás and Hernádi, Klára and Arthanareeswaran, Gangasalam and Veréb, Gábor (2022) Statistical Analysis of Synthesis Parameters to Fabricate PVDF/PVP/TiO2 Membranes via Phase-Inversion with Enhanced Filtration Performance and Photocatalytic Properties. POLYMERS, 14 (1). No. 113. ISSN 2073-4360
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Abstract
Non-solvent induced phase-inversion is one of the most used methods to fabricate membranes. However, there are only a few studies supported by statistical analysis on how the different fabrication conditions affect the formation and performance of membranes. In this paper, a central composite design was employed to analyze how different fabrication conditions affect the pure water flux, pore size, and photocatalytic activity of polyvinylidene fluoride (PVDF) membranes. Polyvinylpyrrolidone (PVP) was used to form pores, and titanium dioxide (TiO2 ) to ensure the photocatalytic activity of the membranes. The studied bath temperatures (15 to 25 ◦C) and evaporation times (0 to 60 s) did not significantly affect the pore size and pure water flux of the membranes. The concentration of PVDF (12.5 to 17.5%) affected the viscosity, formation capability, and pore sizes. PVDF at high concentrations resulted in membranes with small pore sizes. PVP affected the pore size and should be used to a limited extent to avoid possible hole formation. TiO2 contents were responsible for the decolorization of a methyl orange solution (10−5 M) up to 90% over the period studied (30 h). A higher content of TiO2 did not increase the decolorization rate. Acidic conditions increased the photocatalytic activity of the TiO2 -membranes.
| Item Type: | Article |
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| Additional Information: | Department of Biosystems Engineering, Faculty of Engineering, University of Szeged, Moszkvai Blvd. 9, Szeged, HU-6725, Hungary Doctoral School of Environmental Sciences, University of Szeged, Dugonics Square 13, Szeged, HU-6720, Hungary Department of Inorganic and Analytical Chemistry, Institute of Chemistry, University of Szeged, Dóm Square 7, Szeged, HU-6720, Hungary Department of Applied and Environmental Chemistry, Institute of Chemistry, University of Szeged, Rerrich Béla Sq. 1, Szeged, HU-6720, Hungary Institute of Physical Metallurgy, Metal Forming and Nanotechnology, University of Miskolc, Miskolc-Egyetemváros, C/1 108, Miskolc, HU-3515, Hungary Membrane Research Laboratory, Department of Chemical Engineering, National Institute of Technology, Tamilnadu, Tiruchirappalli, 620015, India Cited By :1 Export Date: 16 February 2023 Correspondence Address: Veréb, G.; Department of Biosystems Engineering, Moszkvai Blvd. 9, Hungary; email: vereb@mk.u-szeged.hu |
| Uncontrolled Keywords: | polyvinylpyrrolidone; photocatalytic membrane; TiO2 nanoparticles; statistical analysis; central composite design |
| Subjects: | Q Science / természettudomány > Q1 Science (General) / természettudomány általában |
| SWORD Depositor: | MTMT SWORD |
| Depositing User: | MTMT SWORD |
| Date Deposited: | 26 Mar 2026 09:08 |
| Last Modified: | 26 Mar 2026 09:08 |
| URI: | https://real.mtak.hu/id/eprint/236327 |
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