Titanate@TiO2 core-shell nanobelts with an enhanced photocatalytic activity

Xiong, Zhigang and Zhao, X. S. (2013) Titanate@TiO2 core-shell nanobelts with an enhanced photocatalytic activity. Journal of Materials Chemistry A, 1 26: 7738-7744. doi:10.1039/c3ta11247k

Author Xiong, Zhigang
Zhao, X. S.
Title Titanate@TiO2 core-shell nanobelts with an enhanced photocatalytic activity
Formatted title
Titanate@TiO2 core–shell nanobelts with an enhanced photocatalytic activity †
Journal name Journal of Materials Chemistry A   Check publisher's open access policy
ISSN 2050-7488
Publication date 2013-05
Year available 2013
Sub-type Article (original research)
DOI 10.1039/c3ta11247k
Open Access Status Not Open Access
Volume 1
Issue 26
Start page 7738
End page 7744
Total pages 7
Place of publication Cambridge , United Kingdom
Publisher R S C Publications
Collection year 2014
Language eng
Formatted abstract
Composite titanate@TiO2 nanobelts with a core–shell heterostructure were prepared and applied for the photocatalytic degradation of benzoic acid (BA) under UV light irradiation. The composite materials prepared using layered titanate with or without the presence of cetyl trimethylammonium bromide (CTAB) were characterized by X-ray diffraction, physical adsorption–desorption of nitrogen, and scanning/transmission electron microscope techniques. Results showed that pre-treatment of layered titanate with CTAB effectively promoted the disassembly of layered K2Ti4O9 to exfoliate into platelets and the deposition of anatase nanoparticles on both sides of the platelets, leading to maximized interfacial contacts between the two components. In addition, the dense aggregation of TiO2 nanoparticles in the shell, the interparticle interaction between K2Ti4O9 and TiO2 and the anisotropically shaped structure of K2Ti4O9 cumulatively improved the spatial dissociation and migration of electron–hole pairs, resulting in a retarded electron–hole recombination and an enhanced photocatalytic performance. The composite photocatalysts were stable and could be repeatedly used for the removal of BA from water.
Keyword Visible-light
Palladium phthalocyaninesulfonate
Layered titanates
Mesoporous Tio2
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
Official 2014 Collection
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Citation counts: TR Web of Science Citation Count  Cited 13 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 12 times in Scopus Article | Citations
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