fulltext.study @t Gmail

Hydrogen photoproduction under visible irradiation of Au–TiO2/activated carbon

Paper ID Volume ID Publish Year Pages File Format Full-Text
41184 45879 2012 10 PDF Available
Title
Hydrogen photoproduction under visible irradiation of Au–TiO2/activated carbon
Abstract

The photoproduction of hydrogen has been performed under visible light irradiation of Au–TiO2/activated carbon (AC) materials prepared by different activation methods. Results were compared against those obtained under ultraviolet irradiation. Characterization of TiO2, AC and Au–TiO2/AC was performed by adsorption–desorption N2 isotherms, surface pH (pHPZC), infrared spectroscopy (FTIR), X-ray diffraction (XRD), X-ray photoelectronic spectroscopy (XPS), diffuse reflectance UV–vis spectroscopy (DR/UV–vis), and transmission electron microscopy (TEM). The present results showed that functional groups on the carbon surface are responsible to enhance 2.6 times the photocatalytic activity of Au nanoparticles deposited on TiO2. Characterization suggests that carboxylate anions detected on surface of some AC interact with metallic center at TiO2 and this surface interaction would be responsible of the enhancement in the photoactivity.

Graphical abstractHydrogen photoproduction under Au–TiO2/AC.Figure optionsDownload full-size imageDownload high-quality image (98 K)Download as PowerPoint slideHighlights► Au–TiO2/activated carbon materials for H2 photoproduction under visible light. ► Photo-assistance of carbon materials to TiO2. ► Enhancement in the surface plasmon resonance of Au nanoparticles.

Keywords
H2 photoproduction; TiO2; Au-based catalysts; Activated carbon
First Page Preview
Hydrogen photoproduction under visible irradiation of Au–TiO2/activated carbon
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
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volumes 417–418, 29 February 2012, Pages 263–272
Authors
, , , ,
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