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Enhanced photoelectrocatalytic performance of polyoxometalate-titania nanocomposite photoanode

Paper ID Volume ID Publish Year Pages File Format Full-Text
48492 46510 2007 9 PDF Available
Title
Enhanced photoelectrocatalytic performance of polyoxometalate-titania nanocomposite photoanode
Abstract

Polyoxophosphotungstate-incorporated titania/titanium nanocomposite (POPTA-TiO2/Ti) has been developed as a photo-anode for photo-electro-catalytic application. Highly-ordered anatase TiO2 nanotube array with a vertical orientation is synthesized by a controlled anodization plus a post-calcination. Hybrid incorporation is followed by embedding POPTA into TiO2 tubule channels. The morphological characteristics, crystal behavior and chemical structure of POPTA-TiO2 are examined by field emission scanning electron microscopy, X-ray diffraction (XRD), thermogravimetry analysis and Fourier transformed infra-red spectroscopy. Electrochemical properties and photocurrent responses have been investigated by linear sweep voltammetry. Photo-catalytic and photo-electro-catalytic applications for recalcitrant organic pollutant degradation have been investigated to examine photo-electrochemical efficiency and effectiveness of POPTA-TiO2/Ti nanocomposite photo-anode. Electro-generation hydrogen pyroxide (H2O2)-assisted TiO2 photo-electro-catalysis has been also conducted by using dual functional electrodes of a nanotubular POPTA-TiO2/Ti photo-anode and a vitreous carbon cathode for enhanced photo-electrochemical performance.

Keywords
Nanocomposite photo-anode; Photo-electro-catalytic; Polyoxophosphotungstate; Titania nanotube array
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 76, Issues 1–2, 30 October 2007, Pages 15–23
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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
Online Support
Any Questions? feel free to contact us