Department of Chemistry, Faculty of Science and Technology, Universitas Islam Negeri Sunan Kalijaga, Indonesia
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@article{JKSA28502, author = {Sudarlin Sudarlin and Andika Afrianto and Melly Khoerunnisa and Dhea Rahmadhani and Anggit Nugroho}, title = {Utilization of Montmorillonite-Modified Earthenware from Bentonite-Ca as a Microbial Fuel Cell (MFC) Membrane Based on Tempe Liquid Waste as a Substrate}, journal = {Jurnal Kimia Sains dan Aplikasi}, volume = {23}, number = {6}, year = {2020}, keywords = {current; power density; proton transfer; redox reaction; potential difference}, abstract = {Modifications of the Microbial Fuel Cell (MFC) membrane need to be carried out to increase its electric potential energy. This research aims to determine the effect of montmorillonite from bentonite-Ca as a composite in modified earthenware (GT), which is then used as a membrane of the MFC-based on tempe wastewater as substrate. The results obtained were compared to MFC that used pure earthenware membrane (GM). The ratio of bentonite-Ca and clay in GT was 50:50, while GM used 100% of clay. Characterizations of GT dan GM were performed using FTIR, XRD, and SAA. MFC testing was carried out for 24 hours, where every 2 hours, measurements of potential difference (V), current (A), and power density (W/cm 2 ) were carried out. FTIR and XRD data showed an increase in montmorillonite content in GT, while SAA data showed a decrease in pore volume in GT. The decrease in pore volume GT occurs due to an increase in the number of trivalent cations (Al 3+ , Fe 3+ ) and bivalent (Mg 2+ ). These cations help transfer protons from the anode to the cathode, which causes a decrease in the potential difference and an increase in the current strength and the MFC-GT power density. The average difference between the decrease in potential difference from MFC-GM to MFC-GT is 0.043 V, while the increase in current is 0.022 mA, and the increase in power density is 0.163 mW/cm 2 .}, issn = {2597-9914}, pages = {222--227} doi = {10.14710/jksa.23.6.222-227}, url = {https://ejournal.undip.ac.id/index.php/ksa/article/view/28502} }
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