Electrochemical degradation of Amaranth aqueous solution on ACF

Li Fan; Yanwei Zhou; Weishen Yang; Guohua Chen; Fenglin Yang

doi:10.1016/j.jhazmat.2006.04.008

Electrochemical degradation of Amaranth aqueous solution on ACF

Li Fan, Yanwei Zhou, Weishen Yang, Guohua Chen, Fenglin Yang

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

74 Citations (Scopus)

Abstract

The degradation of Amaranth, a kind of azo dye, has been studied under galvanostatic model with activated carbon fiber (ACF) electrode in aqueous solution with electrochemical method. The ACF was used as anode and cathode, respectively for the decolorization process. The onset oxidation potential and reduction potential for Amaranth on ACF were respectively ascertained at 0.6 and -0.4 V. During the range of -1.1 to 0.50 mA cm^-2, the decolorization was clarified into three processes as electroreduction, adsorption and electrooxidation. There were little contributions to the color and COD removals for the process of adsorption. The color removal can be up to 99% when the current density was 0.50 mA cm^-2. The maximum COD removal was 52% for the process of electrooxidation. Hundred percent color removal was obtained when the current density of -1.0 mA cm^-2 was applied. The maximum COD removal was 62% for the electroreduction. The COD removal results from the adsorption of products for the decolorization process of electrooxidation or electroreduction. © 2006.

Original language	English
Pages (from-to)	1182-1188
Journal	Journal of Hazardous Materials
Volume	137
Issue number	2
DOIs	https://doi.org/10.1016/j.jhazmat.2006.04.008
Publication status	Published - 21 Sept 2006
Externally published	Yes

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Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Research Keywords

Activated carbon fiber(ACF)
Dye
Electrooxidation
Electroreduction
Galvanostatic model

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title = "Electrochemical degradation of Amaranth aqueous solution on ACF",

abstract = "The degradation of Amaranth, a kind of azo dye, has been studied under galvanostatic model with activated carbon fiber (ACF) electrode in aqueous solution with electrochemical method. The ACF was used as anode and cathode, respectively for the decolorization process. The onset oxidation potential and reduction potential for Amaranth on ACF were respectively ascertained at 0.6 and -0.4 V. During the range of -1.1 to 0.50 mA cm-2, the decolorization was clarified into three processes as electroreduction, adsorption and electrooxidation. There were little contributions to the color and COD removals for the process of adsorption. The color removal can be up to 99% when the current density was 0.50 mA cm-2. The maximum COD removal was 52% for the process of electrooxidation. Hundred percent color removal was obtained when the current density of -1.0 mA cm-2 was applied. The maximum COD removal was 62% for the electroreduction. The COD removal results from the adsorption of products for the decolorization process of electrooxidation or electroreduction. {\textcopyright} 2006.",

keywords = "Activated carbon fiber(ACF), Dye, Electrooxidation, Electroreduction, Galvanostatic model",

author = "Li Fan and Yanwei Zhou and Weishen Yang and Guohua Chen and Fenglin Yang",

note = "Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].",

year = "2006",

month = sep,

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doi = "10.1016/j.jhazmat.2006.04.008",

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pages = "1182--1188",

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TY - JOUR

T1 - Electrochemical degradation of Amaranth aqueous solution on ACF

AU - Fan, Li

AU - Zhou, Yanwei

AU - Yang, Weishen

AU - Chen, Guohua

AU - Yang, Fenglin

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2006/9/21

Y1 - 2006/9/21

N2 - The degradation of Amaranth, a kind of azo dye, has been studied under galvanostatic model with activated carbon fiber (ACF) electrode in aqueous solution with electrochemical method. The ACF was used as anode and cathode, respectively for the decolorization process. The onset oxidation potential and reduction potential for Amaranth on ACF were respectively ascertained at 0.6 and -0.4 V. During the range of -1.1 to 0.50 mA cm-2, the decolorization was clarified into three processes as electroreduction, adsorption and electrooxidation. There were little contributions to the color and COD removals for the process of adsorption. The color removal can be up to 99% when the current density was 0.50 mA cm-2. The maximum COD removal was 52% for the process of electrooxidation. Hundred percent color removal was obtained when the current density of -1.0 mA cm-2 was applied. The maximum COD removal was 62% for the electroreduction. The COD removal results from the adsorption of products for the decolorization process of electrooxidation or electroreduction. © 2006.

AB - The degradation of Amaranth, a kind of azo dye, has been studied under galvanostatic model with activated carbon fiber (ACF) electrode in aqueous solution with electrochemical method. The ACF was used as anode and cathode, respectively for the decolorization process. The onset oxidation potential and reduction potential for Amaranth on ACF were respectively ascertained at 0.6 and -0.4 V. During the range of -1.1 to 0.50 mA cm-2, the decolorization was clarified into three processes as electroreduction, adsorption and electrooxidation. There were little contributions to the color and COD removals for the process of adsorption. The color removal can be up to 99% when the current density was 0.50 mA cm-2. The maximum COD removal was 52% for the process of electrooxidation. Hundred percent color removal was obtained when the current density of -1.0 mA cm-2 was applied. The maximum COD removal was 62% for the electroreduction. The COD removal results from the adsorption of products for the decolorization process of electrooxidation or electroreduction. © 2006.

KW - Activated carbon fiber(ACF)

KW - Dye

KW - Electrooxidation

KW - Electroreduction

KW - Galvanostatic model

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DO - 10.1016/j.jhazmat.2006.04.008

M3 - RGC 21 - Publication in refereed journal

C2 - 16713086

SN - 0304-3894

VL - 137

SP - 1182

EP - 1188

JO - Journal of Hazardous Materials

JF - Journal of Hazardous Materials

IS - 2

ER -

Electrochemical degradation of Amaranth aqueous solution on ACF

Abstract

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