Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University, Indonesia
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@article{JKSA18801, author = {Desvita Sari and Linda Suyati and Didik Widodo}, title = {Pengaruh Buffer Kalium Fosfat dan Natrium Fosfat terhadap Produksi Listrik dalam Sistem Microbial Fuel Cell (MFC) dengan Lactobacillus bulgaricus pada Whey Tahu}, journal = {Jurnal Kimia Sains dan Aplikasi}, volume = {19}, number = {3}, year = {2016}, keywords = {Microbial Fuel Cell; Buffer Fosfat; pH; Whey tahu; Beda Potensial}, abstract = { Microbial Fuel Cell (MFC) adalah sistem bioelektrokimia yang mengubah energi kimia menjadi energi listrik yang melibatkan reaksi reduksi dan oksidasi dengan memanfaatkan mikroba. Tujuan penelitian ini adalah menentukan beda potensial yang dihasilkan sistem MFC pada substrat whey tahu menggunakan mikroba Lactobacillus bulgaricus dengan variasi bahan buffer fosfat dan pH. Penelitian ini menggunakan sistem MFC dual chamber dengan jembatan garam sebagai penghantar proton dari kompartemen anoda ke kompartemen katoda. Kompartemen anoda berisi campuran mikroba yang sudah dikultivasi dan buffer kalium fosfat atau buffer natrium fosfat dengan variasi pH, yaitu 5,5; 6; 6,5; 7. Pada katoda berisi elektrolit KMnO 4 0,2 M, buffer fosfat, dan pH dengan variasi yang sama. Pengukuran beda potensial dilakukan pada suhu ruang selama 30 jam. Pengukuran kelistrikan pada sistem MFC menggunakan buffer kalium fosfat pada empat pH berbeda yaitu 7 ; 6,5 ; 6 ; 5,5 dalam 100 mL volume sistem masing-masing menghasilkan beda potensial yaitu sebesar 42,2 mV; 32 mV; 30 mV; 29,3 mV. Sedangkan dalam sistem buffer natrium fosfat dan 100 mL dengan variasi pH yang sama berturut-turut adalah 20 mV ; 18,6 mV ; 17 mV ; 4 mV. Buffer kalium fosfat menghasilkan beda potensial yang lebih besar dibandingkan dengan buffer natrium fosfat.}, issn = {2597-9914}, pages = {107--110} doi = {10.14710/jksa.19.3.107-110}, url = {https://ejournal.undip.ac.id/index.php/ksa/article/view/18801} }
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