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Optimization in Mediated Electrochemical Oxidation Using Cobalt Sulfate as a Mediator

Rubianto Abd. Lubis ^a^,^,, Husein H. Bahti ^a, Iwan Hastiawan ^a, Dennis Mulcahy ^b
^a Department of Chemistry, Faculty of Mathematics and natural Sciences, Padjadjaran, University Jl. Raya Bandung-Sumedang Km 21, Jatinangor 45363, Indonesia
^b Centre for Water Management and Reuse, University of South Australia, Mawson Lakes, Adelaide, South Australia

*) email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it

Abstract

Optimization of the Mediated Electrochemical Oxidation (MEO) for destructing a dissolved organic compound has been studied. The experiment was carried out in a 100 mL electrolytic cell equipped with a rotameter, an outlet tube of “tetradent” designs, a collecting tube, a stabilized DC power supply, and electrodes which were fabricated from platinum foil. It has been found that optimum efficiency of destruction of glucose as a model of compound could be achieved by using cobalt sulfate as a mediator, at its optimum concentration of 0.43 M, in a 2 M sulfuric acid solution, for a glucose concentration of 0.2 M. The time required for optimum destruction efficiency was 2 hours.

Keywords: Mediated Electrochemical Oxidation; cobalt sulphate; glucose; optimization

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References

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J.C. Farmer, Wang., F.T. Hickman, R.G.P.R. Lewis. Mediated Electrochemical Oxidation of Organic Waste without Electrode Separators. US. Pat 5, 516 (MAY 14 1996), p. 972 The Regents of University of California, (Oakland. CA)

Peer-review under responsibility of Department of Chemistry, Faculty of Mathematics and Natural Sciences, Padjadjaran University.