A Facile Synthesis of Hierarchically Porous TiO2 Microspheres with Carbonaceous Species for Visible-light Photocatalysis

Hierarchically porous anatase Ti02 microspheres composited with carbonaceous species （TCS） have been successfully fabricated by a one-step template-free solvothermal method, combined with subsequent low temperature dried process. In this configuration, the TCS microspheres are constructed by the int...

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Bibliographic Details
Published in:Journal of materials science & technology 2017, Vol.33 (1), p.39-46
Main Authors: Liu, Weigang, Xu, Yingming, Zhou, Wei, Zhang, Xianfa, Cheng, Xiaoli, Zhao, Hui, Gao, Shan, Huo, Lihua
Format: Article
Language:English
Subjects:
Microspheres
Nanostructure
Photocatalytic properties
Porous materials
TiO2
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Summary:Hierarchically porous anatase Ti02 microspheres composited with carbonaceous species （TCS） have been successfully fabricated by a one-step template-free solvothermal method, combined with subsequent low temperature dried process. In this configuration, the TCS microspheres are constructed by the intercon- nected porous nanosheets, which are further assembled with abundant nanoparticles and carbonaceous species. Such composite microspheres possess a large specific surface area of 337 m2 g-l, uniform mesopores of 3.37 nm and high total pore volumes of 0.275 cm3 g-1. The materials exhibit the enhanced photocatalytic properties and stability for degradation of rhodamine B （RhB） under visible-light irradiation. The enhanced photocatalytic degradation performance may be ascribed to their abundant porous structure, large specific surface area and the unique assist-function of the carbonaceous species.
ISSN:1005-0302
1941-1162
DOI:10.1016/j.jmst.2016.04.007