ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Membranes with a plasma deposited titanium isopropoxide layer

Irena Gancarz, Marek Bryjak, Joanna Wolska, Anna Siekierka, and Wojciech Kujawski

Wrocław University of Technology, 27 Wyspianskiego Str., 50-370 Wrocław, Poland

E-mail: marek.bryjak@pwr.edu.pl

Abstract: Porous polypropylene membranes were coated with plasma polymerized titanium isopropoxide in a 75 kHz plasma reactor. It was noted that the presence of air in the plasma chamber increased the amount of deposited polymer. Selection of the process parameters enabled obtaining membranes with up to 300 μg cm^-2 of polymerized titanium isopropoxide. Deposition of the titanium oxide layer resulted in the reduction of permeate flux but it significantly improved the membrane photocleaning ability. The recovery index reached the level of 95 % for membranes with the highest amount of the titanium oxide deposit.

Keywords: plasma deposited polymer – protein fouling – membrane cleaning

Full paper is available at www.springerlink.com.

DOI: 10.1515/chempap-2015-0206

Chemical Papers 70 (3) 350–355 (2016)