fulltext.study @t Gmail

The photocatalytic activity of TiO2/WO3/noble metal (Au or Pt) nanoarchitectures obtained by selective photodeposition

Paper ID Volume ID Publish Year Pages File Format Full-Text
54838 47028 2013 9 PDF Available
Title
The photocatalytic activity of TiO2/WO3/noble metal (Au or Pt) nanoarchitectures obtained by selective photodeposition
Abstract

Titania/tungsten (VI) oxide/noble metal (gold and platinum) composites were obtained by the means of selective noble metal photodeposition on the desired oxide's surface (either on TiO2 or on WO3). The noble metal particles’ localization was proved by SEM-EDX, while their size with DRS and TEM. The influence of the noble metal nanoparticles’ position was investigated successfully on the light absorption properties, photocatalytic activity toward oxalic acid and photocatalytic hydrogen production. Major differences were observed in the photocatalytic performance of the catalysts in which only the position of the noble metal was changed. Consequently, highly active composites were obtained, that surpassed the reference catalysts’ (TiO2(Au), TiO2(Pt), WO3(Au), WO3(Pt)) oxalic acid degradation yield and were also quite active for photocatalytic hydrogen production.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (307 K)Download as PowerPoint slideHighlights► The selective photodeposition influences the band-gap of the composites. ► Positioning of the Au or Pt grains on TiO2 or WO3 defines the composite's activity. ► The H2 production is also dependent from the noble metal particles’ localization. ► High degradation yields were attained for oxalic acid using the new nanocomposites.

Keywords
Titanium dioxide; Tungsten (VI) oxide; Gold; Platinum; Photocatalysis; Selective photodeposition
First Page Preview
The photocatalytic activity of TiO2/WO3/noble metal (Au or Pt) nanoarchitectures obtained by selective photodeposition
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: Catalysis Today - Volume 208, 1 June 2013, Pages 19–27
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