fulltext.study @t Gmail

Insights towards the influence of Pt features on the photocatalytic activity improvement of TiO2 by platinisation

Paper ID Volume ID Publish Year Pages File Format Full-Text
46531 46441 2012 10 PDF Available
Title
Insights towards the influence of Pt features on the photocatalytic activity improvement of TiO2 by platinisation
Abstract

The influence of Pt features, such as particle size, dispersion, oxidation state and amount of metal, on the improvement of the photoactivity of TiO2 for phenol and methyl orange degradation was studied.The size of Pt deposits was precisely controlled by changing deposition time under medium light intensity during the photodeposition, with sizes ranging from 3 to 6 nm. Pt oxidation state was also strongly dependent on the photodeposition time.Photocatalytic activity results showed that the fraction of metallic platinum (Pt0) was the crucial factor for the improvement of the activity. When the fraction of Pt0 was similar, metal deposit size became the dominant parameter influencing the activity.The influence of the substrate to be degraded (phenol or methyl orange) was also studied.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights▸ Pt deposit size was precisely tuned with sizes ranging from 3 to 6 nm. ▸ Pt oxidation state depended strongly on photodeposition time. ▸ Fraction of metallic platinum (Pt0) was crucial for activity improvement. ▸ At similar fraction of Pt0, metal deposit size became the key parameter for activity. ▸ The influence of substrate to be degraded (phenol or methyl orange) was studied.

Keywords
Pt-TiO2; Platinisation; Photodeposition; Photocatalysis; Phenol oxidation; Methyl orange oxidation
First Page Preview
Insights towards the influence of Pt features on the photocatalytic activity improvement of TiO2 by platinisation
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 B: Environmental - Volume 126, 25 September 2012, Pages 76–85
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