Jump to main content
Jump to site search
Publishing
Advanced
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.


Issue 42, 2015
Previous Article Next Article

The hierarchical structure of cubic K0.5La0.5TiO3 layers and enhanced photocatalytic hydrogen evolution after surface acidification†

Wenli Zhao,a   Guilian Zhu,ab   Wei Zhao,a   Tianquan Lin,*a   Fangfang Xu*a  and  Fuqiang Huang*ab  
Author affiliations

* Corresponding authors

a CAS Key Laboratory of Materials for Energy Conversion and State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences (CAS), Shanghai 200050, P.R. China
E-mail: huangfq@mail.sic.ac.cn

b Beijing National Laboratory for Molecular Sciences and State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P.R. China

Abstract

Transition-metal perovskite oxides possess rich functionalities in the fields of ferroelectrics, piezoelectrics, superconductors, dielectrics, fuel cells and photocatalysis. Nano-facet control of the cubic ATiO3 (A: a divalent cation) phase, a typical perovskite oxide, may result in new properties or phenomena not observable in the bulk material. Herein, we first report a puzzle-like 3D hierarchical structure constructed with K0.5La0.5TiO3 nanosheets. Surprisingly, K0.5La0.5TiO3 has a cubic symmetry similar to a SrTiO3 perovskite. The unusual phase is synthesized by a simple one-pot hydrothermal strategy without using any structure-directing agent. After modest acidification, the assembled 3D hierarchical structure is etched into a core–shell nanostructure which consists of a crystalline K0.5La0.5TiO3 core and an amorphous TiO2 shell. The acid-treated sample exhibits remarkably enhanced photocatalytic H2 production, which is over 60 times higher than the pristine sample.

Graphical abstract: The hierarchical structure of cubic K0.5La0.5TiO3 layers and enhanced photocatalytic hydrogen evolution after surface acidification

Back to tab navigation
Download options Please wait...

Supplementary files

Article information

https://doi.org/10.1039/C5DT03468J
Submitted
07 Sep 2015
Accepted
30 Sep 2015
First published
30 Sep 2015
Dalton Trans., 2015,44, 18665-18670
Article type
Paper
Permissions
Request permissions

The hierarchical structure of cubic K0.5La0.5TiO3 layers and enhanced photocatalytic hydrogen evolution after surface acidification

W. Zhao, G. Zhu, W. Zhao, T. Lin, F. Xu and F. Huang, Dalton Trans., 2015, 44, 18665
DOI: 10.1039/C5DT03468J

If you are not the author of this article and you wish to reproduce material from it in a third party non-RSC publication you must formally request permission using Copyright Clearance Center. Go to our Instructions for using Copyright Clearance Center page for details.

Authors contributing to RSC publications (journal articles, books or book chapters) do not need to formally request permission to reproduce material contained in this article provided that the correct acknowledgement is given with the reproduced material.

Reproduced material should be attributed as follows:

  • For reproduction of material from NJC:
    Reproduced from Ref. XX with permission from the Centre National de la Recherche Scientifique (CNRS) and The Royal Society of Chemistry.
  • For reproduction of material from PCCP:
    Reproduced from Ref. XX with permission from the PCCP Owner Societies.
  • For reproduction of material from PPS:
    Reproduced from Ref. XX with permission from the European Society for Photobiology, the European Photochemistry Association, and The Royal Society of Chemistry.
  • For reproduction of material from all other RSC journals and books:
    Reproduced from Ref. XX with permission from The Royal Society of Chemistry.

If the material has been adapted instead of reproduced from the original RSC publication "Reproduced from" can be substituted with "Adapted from".

In all cases the Ref. XX is the XXth reference in the list of references.

If you are the author of this article you do not need to formally request permission to reproduce figures, diagrams etc. contained in this article in third party publications or in a thesis or dissertation provided that the correct acknowledgement is given with the reproduced material.

Reproduced material should be attributed as follows:

  • For reproduction of material from NJC:
    [Original citation] - Reproduced by permission of The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC
  • For reproduction of material from PCCP:
    [Original citation] - Reproduced by permission of the PCCP Owner Societies
  • For reproduction of material from PPS:
    [Original citation] - Reproduced by permission of The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC
  • For reproduction of material from all other RSC journals:
    [Original citation] - Reproduced by permission of The Royal Society of Chemistry

If you are the author of this article you still need to obtain permission to reproduce the whole article in a third party publication with the exception of reproduction of the whole article in a thesis or dissertation.

Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.

Social activity

Search articles by author

Spotlight

Advertisements