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

Published monthly

The influence of filler type on the separation properties of mixed-matrix membranes

Małgorzata Gnus, Gabriela Dudek, and Roman Turczyn

Silesian University of Technology, Gliwice, Poland



Abstract: Chitosan-based membranes filled with different metal oxide particles were prepared and their performance in ethanol dehydration process depending on the type of oxide and loading was discussed. For membrane preparation three oxides: TiO2, Cr2O3 or Fe3O4 were selected. From experimental data suitable ethanol and water transport coefficients were evaluated. As shown in the results, applied fillers in different ways affect the separation properties. Presence of TiO2 significantly affects the normalized total flux, increasing its value. On the other hand, addition of Fe3O4 influences most of all the separation factor, which is the among all investigated membranes. For membranes containing chromium(III) oxide as a filler, improvement in the separation properties is observed only in the case when the Cr2O3 content equals to 5 wt%. Above this concentration significant deterioration of separation properties is observed. The best performance has mixed-matrix membranes (MMMs) with magnetite, where the values of PSI are equal to 16.3 and 296.8 kg/m−2 h µm for pristine and 15 wt% filler content, respectively.

Keywords: Pervaporation ; Composite membranes ; Metal oxides 

Full paper is available at

DOI: 10.1007/s11696-017-0363-9


Chemical Papers 72 (5) 1095–1105 (2018)

Saturday, May 25, 2024

SCImago Journal Rank 2021
European Symposium on Analytical Spectrometry ESAS 2022
© 2024 Chemical Papers