METHYLENE BLUE MINERALISATION BY ELECTROCHEMICAL PROCESS MEDIATED BY COBALT CATALYST ON PLATINUM ELECTRODES

Brahmia O; Louafi F

Article Details

METHYLENE BLUE MINERALISATION BY ELECTROCHEMICAL PROCESS MEDIATED BY COBALT CATALYST ON PLATINUM ELECTRODES

Authors:

Brahmia O | Louafi F

Publisher:

Université Mentouri de Constantine

Journal:

Sciences & Technologie Vol.3 Issue 1, pp.7-11

Document Type:

Article

Publication Date:

6/2018

Document Language:

English

Document ID (Org No.):

2001409235

pISSN:

2588-1965

Keywords:

Abstract:

 In this study, the electrochemical decolorization of the Methylene Blue dye on Platinum electrodes was assessed. Direct oxidation results demonstrate a partial pollutant degradation reaching a maximum of 64 %. However, the addition of a small amount of a redox mediator Co2+/3+ is efficiently able to electrocatalyse the Methylene blue oxidation by shortening significantly the treatment time and enhancing clearly the dye decolorization rate. Nearly complete decolorization was achieved (92 % in 1h 45min). The most striking results achieved within the cyclic voltammetry study demonstrate undoubtedly the pollutant mineralisation. Electrochemical experiments were performed using the spectrophotometric method, which is very convenient, easy and allows monitoring the spectral changes as well as the determination of the dye concentration during the process. The kinetics data show a first-order indirect oxidation kinetics. A mechanism was proposed to explain the different phenomenon during the electrochemical process.

Article Details

METHYLENE BLUE MINERALISATION BY ELECTROCHEMICAL PROCESS MEDIATED BY COBALT CATALYST ON PLATINUM ELECTRODES

Authors:

Brahmia O | Louafi F

Publisher:

Université Mentouri de Constantine

Journal:

Sciences & Technologie Vol.3 Issue 1, pp.7-11

Document Type:

Article

Publication Date:

6/2018

Document Language:

English

Document ID (Org No.):

2001409235

pISSN:

2588-1965

Decolorization

Methylene Blue

catalyst

Platinum electrode

mineralisation

Issues

Article Details

METHYLENE BLUE MINERALISATION BY ELECTROCHEMICAL PROCESS MEDIATED BY COBALT CATALYST ON PLATINUM ELECTRODES

Authors: Brahmia O | Louafi F

Publisher: Université Mentouri de Constantine

Journal: Sciences & Technologie Vol.3 Issue 1, pp.7-11

Document Type: Article

Publication Date: 6/2018

Document Language: English

Document ID (Org No.): 2001409235

pISSN: 2588-1965

Decolorization

Methylene Blue

catalyst

Platinum electrode

mineralisation

Issues

Authors:

Brahmia O | Louafi F

Publisher:

Université Mentouri de Constantine

Journal:

Sciences & Technologie Vol.3 Issue 1, pp.7-11

Document Type:

Article

Publication Date:

6/2018

Document Language:

English

Document ID (Org No.):

2001409235

pISSN:

2588-1965