Research Article
Study of Methylene Blue Degradation Using Mediated Electrochemical Oxidation With Ce (IV) Ions: Effect of Supporting Electrolyte, Ce (III) Concentration, and Oxidation Potential
@INPROCEEDINGS{10.4108/eai.12-10-2019.2296387, author={Ummu Rokhima and Henry Setiyanto and Muhammad Ali Zulfikar and Vienna Saraswaty and Nandang Mufti}, title={Study of Methylene Blue Degradation Using Mediated Electrochemical Oxidation With Ce (IV) Ions: Effect of Supporting Electrolyte, Ce (III) Concentration, and Oxidation Potential}, proceedings={Proceedings of the 7th Mathematics, Science, and Computer Science Education International Seminar, MSCEIS 2019, 12 October 2019, Bandung, West Java, Indonesia}, publisher={EAI}, proceedings_a={MSCEIS}, year={2020}, month={7}, keywords={methylene blue meo degradation cerium}, doi={10.4108/eai.12-10-2019.2296387} }- Ummu Rokhima
Henry Setiyanto
Muhammad Ali Zulfikar
Vienna Saraswaty
Nandang Mufti
Year: 2020
Study of Methylene Blue Degradation Using Mediated Electrochemical Oxidation With Ce (IV) Ions: Effect of Supporting Electrolyte, Ce (III) Concentration, and Oxidation Potential
MSCEIS
EAI
DOI: 10.4108/eai.12-10-2019.2296387
Abstract
Methylene Blue (MB) is a dye commonly used in the textile industry. Dyes waste from the textile industry harms the ecosystem of the environment. One method of textile dye waste degradation is mediated electrochemical oxidation. This method uses an oxidation-reduction process using metal ion as a mediator. The mediator metal ions act as an oxidizer which oxidizes textile dyes waste into simpler compounds. The mediator ion used in this study was Ce (IV) in acidic. The results of degradation were analyzed using voltammetry method. This study used carbon paste electrode as working electrode, platinum wire as auxiliary electrode, and Ag/AgCl as reference electrode. The results of the cyclic voltammogram showed that the oxidation potential of MB is 0.2880 V while Ce(III)/Ce(IV) in H2SO4 has oxidation and reduction potentials 1.2400 V and 0.4520 V. This potential indicates that MB oxidation potential was not disturbed by mediator ion potential. The optimum condition of degradation was obtained at 250 ppm MB with 0.015 M Ce(III) and 0.2 M H2SO4 for 30 minutes using the potential of 6 V.