| EPSRC Reference: |
GR/L96066/01 |
| Title: |
WATER RECYCLING BY PHOTO-ELECTROCHEMICAL OXIDATION OF ORGANIC CONTAMINANTS |
| Principal Investigator: |
Egerton, Dr TA |
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| Department: |
School of Chemistry |
| Organisation: |
Newcastle University |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 October 1998 |
Ends: |
30 September 2001 |
Value (£): |
187,869
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| No relevance to Underpinning Sectors |
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Summary on Grant Application Form |
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The research aims to develop an efficient photocatalyst water treatment based on UV irradiation of TiO2 semiconductors to generate powerfully - oxidizing OH radical. Despite considerable previous academic research, photocatalystic oxidation systems to allow the reuse of water from aqueous industrial waste streams have not been adopted. Most previous work has been based on slurry reactors. Quantum efficiencies of the process have been to low- typically less than 5% - because of charge carrier recombination. To limit the recombination and achieve higher quantum efficiencies requires particles <100nm in diameter and these are difficult to remove from the slurry. We propose to increase the quantum efficiency of the process by the application of an electrical field to an immobilized Ti02 photoanode. Catalyst preparation will be optimised with respect to (a) activity for the oxidation of effluent from large scale production of nitrobenzene - a key intermediate in ICI's Plyutheranes Business - and (b) immobilization. Immobilization of the catalyst will eliminate carry over into the purified water. Mass transport limitations will be eliminated by developing a turbulent reaction system.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.ncl.ac.uk |