Jump to main content
Jump to site search

Issue 15, 2017
Previous Article Next Article

Topochemical synthesis and photocatalytic activity of 3D hierarchical BaTiO3 microspheres constructed from crystal-axis-oriented nanosheets

Author affiliations

Abstract

Novel BaTiO3 hierarchical porous microspheres were achieved by using H2Ti2O5·H2O (HTO) hierarchical microspheres as a precursor template via a facile solvothermal method. Interestingly, the BaTiO3 microspheres were constructed with two-dimensional (2D) nanosheets, which were composed of many order nanocrystals with crystal-axis-orientation. The special hierarchical structure, which is both macroporous and mesoporous, exhibits a large specific surface area and a high total pore volume. The photocatalytic performance of BaTiO3 hierarchical microspheres for degradation of methyl orange (MO) under UV-light irradiation was tested, its apparent rate being up to 0.10183 min−1, almost 23 times higher than that for nanoscale BaTiO3 particles. The attractive photocatalytic properties are considered to benefit from the effective features of hierarchical BaTiO3 microspheres, such as the ultrathin thickness of nanosheets and their ordered interconnected macro–mesoporous structure and intrinsic photocatalytic activity. This study offers an in situ topochemical conversion route to synthesis of other titanium-based perovskite hierarchical nanostructures, and thus opening the door for the synthesis of other titanium-based functional materials and expanding their potential application.

Graphical abstract: Topochemical synthesis and photocatalytic activity of 3D hierarchical BaTiO3 microspheres constructed from crystal-axis-oriented nanosheets

Back to tab navigation
Please wait while Download options loads

Supplementary files

Publication details

The article was received on 27 Feb 2017, accepted on 16 Mar 2017 and first published on 16 Mar 2017


Article type: Paper
DOI: 10.1039/C7DT00724H
Citation: Dalton Trans., 2017,46, 5017-5024
  •   Request permissions

    Topochemical synthesis and photocatalytic activity of 3D hierarchical BaTiO3 microspheres constructed from crystal-axis-oriented nanosheets

    C. Chen, S. Zhao, Q. Lu, K. Luo, X. Zhang and C. Nan, Dalton Trans., 2017, 46, 5017
    DOI: 10.1039/C7DT00724H

Search articles by author