Pengoksidaan elektrokimia C. I. reactive orange 4 menggunakan elektrod komposit dwilogam

Translated title of the contribution: Electrochemical oxidation of C. I. reactive orange 4 using bimetallic composite electrodes

Norazzizi Nordin, Mohamed Rozali Othman

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Bimetallic composite electrode prepared from mixture of argentums (Ag) and carbon (C) powder (known as AgC-PVC) becomes the best electrode to decolorize C. I. Reactive Orange 4 (RO4) solution without sludge formation in the end of electrolysis process. Three ratios of Ag:C powder (30:70, 50:50 and 70:30) have been used for preparation of electrode to investigate the effect of electrode composition toward decolorization of RO4 solution. From Tafel equation obtained, the value of exchange current density, io for Ag28.5C66.5-PVC5 prepared from 30% Ag and 70% C is 3.555 mA/cm2 becomes the highest than other electrodes. This electrode gives the best electrocatalytic activity compared to others. The clear solution produced after electrolysis of RO4 was analyzed by UV-VIS spectrophotometer to identify the level of decolorization. The UV-Vis spectrum shows that degradation of azo group occurs in RO4 structure to produce clear solution after electrolysis process. Copyright Reserved

Original languageUndefined/Unknown
Pages (from-to)1761-1768
Number of pages8
JournalSains Malaysiana
Volume43
Issue number11
Publication statusPublished - 1 Nov 2014

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Electrochemical oxidation
Electrodes
Composite materials
Electrolysis
Powders
Ultraviolet spectrophotometers
Polyvinyl Chloride
reactive orange
Current density
Carbon
Degradation
Chemical analysis

Keywords

  • Bimetallic composite electrode
  • Decolorization
  • Electrochemical oxidation

ASJC Scopus subject areas

  • General

Cite this

Pengoksidaan elektrokimia C. I. reactive orange 4 menggunakan elektrod komposit dwilogam. / Nordin, Norazzizi; Othman, Mohamed Rozali.

In: Sains Malaysiana, Vol. 43, No. 11, 01.11.2014, p. 1761-1768.

Research output: Contribution to journalArticle

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N2 - Bimetallic composite electrode prepared from mixture of argentums (Ag) and carbon (C) powder (known as AgC-PVC) becomes the best electrode to decolorize C. I. Reactive Orange 4 (RO4) solution without sludge formation in the end of electrolysis process. Three ratios of Ag:C powder (30:70, 50:50 and 70:30) have been used for preparation of electrode to investigate the effect of electrode composition toward decolorization of RO4 solution. From Tafel equation obtained, the value of exchange current density, io for Ag28.5C66.5-PVC5 prepared from 30% Ag and 70% C is 3.555 mA/cm2 becomes the highest than other electrodes. This electrode gives the best electrocatalytic activity compared to others. The clear solution produced after electrolysis of RO4 was analyzed by UV-VIS spectrophotometer to identify the level of decolorization. The UV-Vis spectrum shows that degradation of azo group occurs in RO4 structure to produce clear solution after electrolysis process. Copyright Reserved

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