Issue 17, 2011
From the journal:

CrystEngComm

Self-assembly of Pt nanocrystals/one-dimensional titanate nanobelts heterojunctions and their great enhancement of photocatalytic activities

Yueli Liu,ab   Lei Zhong,a   Zhuoyin Peng,a   Yi Cai,a   Yanbao Songa  and  Wen Chen*a  

* Corresponding authors

a State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, P.R. China
E-mail: chenw@whut.edu.cn
Fax: +(86) 27 8786 4580
Tel: +(86) 27 8765 1107

b CEA Grenoble, UMR 5819 CEA CNRS, DSM, DRFMC, SPrAM, LEMOH, F-38054, Grenoble, France
E-mail: lylliuwhu@hotmail.com
Fax: +(33) 4 3878 5113
Tel: +(33) 4 3878 9719

Abstract

In the present work, novel layered-structure titanate (H2Ti5O11ยท3H2O) nanobelts are synthesized by a hydrothermal method and then Pt nanocrystals/titanate nanobelts heterojunctions with high yield, well dispersion and tight interaction are self-assembled via the linker molecule of thioglycolic acid. Their photocatalytic activity for the degradation of methyl orange solution is enhanced by increasing the Pt precursor's content ratio. The degradation ratio of the heterojunctions with 11.0 wt% Pt nanocrystals will increase to 100% and 68.2% from 62% and 5% for pure titanate nanobelts after 300 min irradiation under UV and visible light irradiation, respectively. These are better when compared with similar reports, as the heterojunctions will suppress the recombination of electron-hole pairs in titanate nanobelts, where the Pt particles act as electron traps aiding electron-hole separation.

Graphical abstract: Self-assembly of Pt nanocrystals/one-dimensional titanate nanobelts heterojunctions and their great enhancement of photocatalytic activities

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Article information

DOI
https://doi.org/10.1039/C1CE05425B
Article type
Paper
Submitted
09 Apr 2011
Accepted
02 Jun 2011
First published
11 Jul 2011

CrystEngComm, 2011,13, 5467-5473

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Self-assembly of Pt nanocrystals/one-dimensional titanate nanobelts heterojunctions and their great enhancement of photocatalytic activities

Y. Liu, L. Zhong, Z. Peng, Y. Cai, Y. Song and W. Chen, CrystEngComm, 2011, 13, 5467 DOI: 10.1039/C1CE05425B

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