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Near Ultraviolet and Visible light photoelectrochemical degradation of organic substances producing electricity and hydrogen

Paper ID Volume ID Publish Year Pages File Format Full-Text
27973 44053 2009 6 PDF Available
Title
Near Ultraviolet and Visible light photoelectrochemical degradation of organic substances producing electricity and hydrogen
Abstract

A two-compartment, chemically biased photoelectrochemical cell was used to photodegrade several organic substances and produce electricity and hydrogen. The photoanode of the cell was based on commercial nanocrystalline titania, which may be functionalized with CdS to absorb Visible light. The dark cathode was made also of commercial nanocrystalline titania with cast Pt nanoparticles. The cell was run under Near Ultraviolet or Visible radiation and the efficiencies in the two cases have been compared. Short chain-length alcohols and glycerol produced the highest energy yield but water-soluble waste materials are also interesting for the same purpose. The overall efficiency of cells made by CdS-functionalized titania was higher than those made of pure titania. However, larger currents were obtained with pure TiO2 under Near Ultraviolet excitation. Under anaerobic conditions, molecular hydrogen can be produced at the dark cathode by the reduction of hydrogen ions generated at the photoanode.

Keywords
Nanocrystalline titania; Cadmium sulphide; Photoelectrochemical cell
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Near Ultraviolet and Visible light photoelectrochemical degradation of organic substances producing electricity and hydrogen
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 204, Issue 1, 30 April 2009, Pages 69–74
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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Any Questions? feel free to contact us