Biofouling-focused assessment of a novel, cellulose-based ionogel membrane applied in a microbial fuel cell

0584984 - ÚMCH 2025 RIV GB eng J - Článek v odborném periodiku
Szakács, S. - Martínez, E. O. - Koók, L. - Santos Medeiros, Gabriela - Alarcon, J. T. - Jeison, D. - Pientka, Zbyněk - Nemestóthy, N. - Bélafi-Bakó, K. - Bakonyi, P.
Biofouling-focused assessment of a novel, cellulose-based ionogel membrane applied in a microbial fuel cell.
Bioresource Technology Reports. Roč. 26, June (2024), č. článku 101817. ISSN 2589-014X. E-ISSN 2589-014X
Institucionální podpora: RVO:61389013
Klíčová slova: cellulose * ionic liquid * membrane synthesis
Obor OECD: Polymer science
Způsob publikování: Open access
https://www.sciencedirect.com/science/article/pii/S2589014X24000586?via%3Dihub

In this work, a novel ionogel membrane was prepared on polyethersulfone physical support from the mixture of microcrystalline cellulose and [BMIM][Cl] (1-Butyl-3-methylimidazolium chloride) ionic liquid and used in a microbial fuel cell (MFC). The ionogel membrane was characterized in terms of its morphology, mass- (substrate, oxygen) and ion transfer features and compared to Nafion 115. The membranes were deployed in acetate-fed two-chamber MFC, where the MFC equipped with the ionogel membrane showed a Coulombic efficiency and peak current density of 49.4 % and 369 mA m−2, respectively. Through three weeks of experiments, the electrode and membrane biofouling layers were studied by 16S amplicon metagenomics and correspondence analysis. It turned out that a cellulose-degrading species, Clostridium termitidis was present with a relatively large, 23.2 % relative abundance on the surface of the ionogel membrane, which may have caused its deterioration and the consequent colonization of the cathodic compartment.
Trvalý link: https://hdl.handle.net/11104/0352771