Electrochemical degradation of 4-chlorophenol at nickel-antimony doped tin oxide electrode

Y. H. Wang; K. Y. Chan; X. Y. Li; S. K. So

doi:10.1016/j.chemosphere.2006.04.061

Electrochemical degradation of 4-chlorophenol at nickel-antimony doped tin oxide electrode

Y. H. Wang, K. Y. Chan^*, X. Y. Li, S. K. So

^*Corresponding author for this work

Department of Physics

Research output: Contribution to journal › Journal article › peer-review

111 Citations (Scopus)

Abstract

The effectiveness of a novel nickel-antimony doped tin oxide electrode for electrochemical degradation of organic pollutants was investigated using 4-chlorophenol (4-CP) as a model toxic organic. The experimental results demonstrate that the optimal Ni content was at Ni:Sn = 1:500 in atomic ratio in the precursor coating solution, whereas the Sb:Sn ratio was set at 8:500. Using the electrode prepared with the optimal Ni doping ratio for 4-CP degradation, the charge-based efficiencies were up to 89 μg C^-1 for 4-CP destruction and 15 μg C^-1 for TOC removal, which were considerably higher than the efficiencies observed for other electrodes. It is suggested that the enhancement of the electrode for electrochemical oxidation of organics could be attributed to the production of hydroxyl radicals in anodic water electrolysis.

Original language	English
Pages (from-to)	1087-1093
Number of pages	7
Journal	Chemosphere
Volume	65
Issue number	7
DOIs	https://doi.org/10.1016/j.chemosphere.2006.04.061
Publication status	Published - Nov 2006

Scopus Subject Areas

Environmental Engineering
Environmental Chemistry
Chemistry(all)
Pollution
Health, Toxicology and Mutagenesis

User-Defined Keywords

4-Chlorophenol
Antimony-nickel doped tin dioxide electrode
Electro-oxidation
Organic degradation
Wastewater treatment

Access to Document

10.1016/j.chemosphere.2006.04.061

Cite this

@article{f116bee722b6426da66e28099746ecd0,

title = "Electrochemical degradation of 4-chlorophenol at nickel-antimony doped tin oxide electrode",

abstract = "The effectiveness of a novel nickel-antimony doped tin oxide electrode for electrochemical degradation of organic pollutants was investigated using 4-chlorophenol (4-CP) as a model toxic organic. The experimental results demonstrate that the optimal Ni content was at Ni:Sn = 1:500 in atomic ratio in the precursor coating solution, whereas the Sb:Sn ratio was set at 8:500. Using the electrode prepared with the optimal Ni doping ratio for 4-CP degradation, the charge-based efficiencies were up to 89 μg C-1 for 4-CP destruction and 15 μg C-1 for TOC removal, which were considerably higher than the efficiencies observed for other electrodes. It is suggested that the enhancement of the electrode for electrochemical oxidation of organics could be attributed to the production of hydroxyl radicals in anodic water electrolysis.",

keywords = "4-Chlorophenol, Antimony-nickel doped tin dioxide electrode, Electro-oxidation, Organic degradation, Wastewater treatment",

author = "Wang, {Y. H.} and Chan, {K. Y.} and Li, {X. Y.} and So, {S. K.}",

note = "Funding Information: This research has been supported by a seed funding from CRCG, a University Development Fund for Water Environment Engineering in the University of Hong Kong and a grant from the Research Grants Council of Hong Kong SAR (HKU7008/01E). The XPS analysis was performed at CSAR in Hong Kong Baptist University.",

year = "2006",

month = nov,

doi = "10.1016/j.chemosphere.2006.04.061",

language = "English",

volume = "65",

pages = "1087--1093",

journal = "Chemosphere",

issn = "0045-6535",

publisher = "Elsevier Ltd.",

number = "7",

}

TY - JOUR

T1 - Electrochemical degradation of 4-chlorophenol at nickel-antimony doped tin oxide electrode

AU - Wang, Y. H.

AU - Chan, K. Y.

AU - Li, X. Y.

AU - So, S. K.

N1 - Funding Information: This research has been supported by a seed funding from CRCG, a University Development Fund for Water Environment Engineering in the University of Hong Kong and a grant from the Research Grants Council of Hong Kong SAR (HKU7008/01E). The XPS analysis was performed at CSAR in Hong Kong Baptist University.

PY - 2006/11

Y1 - 2006/11

N2 - The effectiveness of a novel nickel-antimony doped tin oxide electrode for electrochemical degradation of organic pollutants was investigated using 4-chlorophenol (4-CP) as a model toxic organic. The experimental results demonstrate that the optimal Ni content was at Ni:Sn = 1:500 in atomic ratio in the precursor coating solution, whereas the Sb:Sn ratio was set at 8:500. Using the electrode prepared with the optimal Ni doping ratio for 4-CP degradation, the charge-based efficiencies were up to 89 μg C-1 for 4-CP destruction and 15 μg C-1 for TOC removal, which were considerably higher than the efficiencies observed for other electrodes. It is suggested that the enhancement of the electrode for electrochemical oxidation of organics could be attributed to the production of hydroxyl radicals in anodic water electrolysis.

AB - The effectiveness of a novel nickel-antimony doped tin oxide electrode for electrochemical degradation of organic pollutants was investigated using 4-chlorophenol (4-CP) as a model toxic organic. The experimental results demonstrate that the optimal Ni content was at Ni:Sn = 1:500 in atomic ratio in the precursor coating solution, whereas the Sb:Sn ratio was set at 8:500. Using the electrode prepared with the optimal Ni doping ratio for 4-CP degradation, the charge-based efficiencies were up to 89 μg C-1 for 4-CP destruction and 15 μg C-1 for TOC removal, which were considerably higher than the efficiencies observed for other electrodes. It is suggested that the enhancement of the electrode for electrochemical oxidation of organics could be attributed to the production of hydroxyl radicals in anodic water electrolysis.

KW - 4-Chlorophenol

KW - Antimony-nickel doped tin dioxide electrode

KW - Electro-oxidation

KW - Organic degradation

KW - Wastewater treatment

UR - http://www.scopus.com/inward/record.url?scp=33748557288&partnerID=8YFLogxK

U2 - 10.1016/j.chemosphere.2006.04.061

DO - 10.1016/j.chemosphere.2006.04.061

M3 - Journal article

C2 - 16762395

AN - SCOPUS:33748557288

SN - 0045-6535

VL - 65

SP - 1087

EP - 1093

JO - Chemosphere

JF - Chemosphere

IS - 7

ER -

Electrochemical degradation of 4-chlorophenol at nickel-antimony doped tin oxide electrode

Abstract

Scopus Subject Areas

User-Defined Keywords

Access to Document

Other files and links

Fingerprint

Cite this