Photoelectrochemical cell for the combined photocatalytic oxidation of organic pollutants and the recovery of metals from waste waters

JA Byrne, BR Eggins, W Byers, NMD Brown

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

Photoanodes were prepared by immobilising TiO2 powder on the surface of Ti-6Al-4V alloy. The TiO2 electrode was incorporated into the anode compartment of a two compartment photoelectrochemical cell and short circuited to a copper wire counter electrode in the cathode compartment. The anode compartment contained oxalate solution and the cathode compartment contained copper sulphate solution. On illumination of the TiO2 anode oxalate was photooxidised at the surface of the TiO2 and the photogenerated electrons moved via the external circuit to the counter electrode where copper ions were reduced. The total charge passed during the experiments was consistent with the amount of copper plated out at the counter electrode. Ninety-seven per cent of the copper in solution was recovered after 120 min of irradiation under unoptimised conditions. (C) 1999 Elsevier Science B.V. All rights reserved.
LanguageEnglish
PagesL85-L89
JournalAPPLIED CATALYSIS B-ENVIRONMENTAL
Volume20
Issue number2
Publication statusPublished - Feb 1999

Fingerprint

Photoelectrochemical cells
Organic pollutants
Copper
Wastewater
Metals
Recovery
Oxidation
Anodes
Electrodes
Oxalates
Cathodes
Copper Sulfate
Powders
Lighting
Irradiation
Wire
Ions
Electrons
Networks (circuits)
Experiments

Keywords

  • photocatalysis
  • titanium dioxide
  • photoelectrochemistry
  • copper reclamation
  • water treatment

Cite this

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abstract = "Photoanodes were prepared by immobilising TiO2 powder on the surface of Ti-6Al-4V alloy. The TiO2 electrode was incorporated into the anode compartment of a two compartment photoelectrochemical cell and short circuited to a copper wire counter electrode in the cathode compartment. The anode compartment contained oxalate solution and the cathode compartment contained copper sulphate solution. On illumination of the TiO2 anode oxalate was photooxidised at the surface of the TiO2 and the photogenerated electrons moved via the external circuit to the counter electrode where copper ions were reduced. The total charge passed during the experiments was consistent with the amount of copper plated out at the counter electrode. Ninety-seven per cent of the copper in solution was recovered after 120 min of irradiation under unoptimised conditions. (C) 1999 Elsevier Science B.V. All rights reserved.",
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Photoelectrochemical cell for the combined photocatalytic oxidation of organic pollutants and the recovery of metals from waste waters. / Byrne, JA; Eggins, BR; Byers, W; Brown, NMD.

In: APPLIED CATALYSIS B-ENVIRONMENTAL, Vol. 20, No. 2, 02.1999, p. L85-L89.

Research output: Contribution to journalArticle

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T1 - Photoelectrochemical cell for the combined photocatalytic oxidation of organic pollutants and the recovery of metals from waste waters

AU - Byrne, JA

AU - Eggins, BR

AU - Byers, W

AU - Brown, NMD

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AB - Photoanodes were prepared by immobilising TiO2 powder on the surface of Ti-6Al-4V alloy. The TiO2 electrode was incorporated into the anode compartment of a two compartment photoelectrochemical cell and short circuited to a copper wire counter electrode in the cathode compartment. The anode compartment contained oxalate solution and the cathode compartment contained copper sulphate solution. On illumination of the TiO2 anode oxalate was photooxidised at the surface of the TiO2 and the photogenerated electrons moved via the external circuit to the counter electrode where copper ions were reduced. The total charge passed during the experiments was consistent with the amount of copper plated out at the counter electrode. Ninety-seven per cent of the copper in solution was recovered after 120 min of irradiation under unoptimised conditions. (C) 1999 Elsevier Science B.V. All rights reserved.

KW - photocatalysis

KW - titanium dioxide

KW - photoelectrochemistry

KW - copper reclamation

KW - water treatment

M3 - Article

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JO - Applied Catalysis B: Environmental

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