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Development of a titania nanotube (TNT) loaded site-selectively with Pt nanoparticles and their photocatalytic activities

Paper ID Volume ID Publish Year Pages File Format Full-Text
43643 45980 2008 5 PDF Available
Title
Development of a titania nanotube (TNT) loaded site-selectively with Pt nanoparticles and their photocatalytic activities
Abstract

Site-selective deposition of Pt nanoparticles on a titania nanotube (TNT) was investigated in order to improve the photocatalytic activity of a TNT. TEM images showed that Pt nanoparticles were deposited site-selectively on the inside surface of the TNT by two methods. TNT powder loaded with Pt nanoparticles by UV irradiation under ethanol atmosphere exhibited the highest photocatalytic activity for oxidation of acetaldehyde. When Pt nanoparticles were deposited on only the inside surface of the TNT by UV irradiation, active sites on the TNT were not covered by Pt nanoparticles, resulting in an increase in its photocatalytic activity for oxidation of acetaldehyde.

Graphical abstractWe investigated site-selective deposition of Pt nanoparticles on the inside surface of titania nanotube (TNT) in order to improve the photocatalytic activity of the TNT. TNT loaded site-selectively with Pt nanoparticles by UV irradiation under ethanol vapor showed the highest photocatalytic activity because the transfer rates of electrons were fastest and the active sites on TNT surface were not covered by Pt nanoparticles.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Photocatalysts; Titania nanotube; Site-selective deposition of Pt nanoparticles; Decomposition of acetaldehyde
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Development of a titania nanotube (TNT) loaded site-selectively with Pt nanoparticles and their photocatalytic activities
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 337, Issue 1, 15 March 2008, Pages 105–109
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
You save - $31
Price after discount Only $4.95
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