Facile fabrication of porous Cr-doped SrTiO3 nanotubes by electrospinning and their enhanced visible-light-driven photocatalytic properties

Dongfang Hou; Xianluo Hu; Wingkei Ho; Pei Hu; Yunhui Huang

doi:10.1039/C4TA05485G

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Facile fabrication of porous Cr-doped SrTiO₃ nanotubes by electrospinning and their enhanced visible-light-driven photocatalytic properties†

Dongfang Hou,^ab Xianluo Hu,*^b Wingkei Ho,*^c Pei Hu^b and Yunhui Huang^b

Author affiliations

* Corresponding authors

^a College of Materials and Chemical Engineering, China Three Gorges University, Yichang 443002, China

^b State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
E-mail: huxl@mail.hust.edu.cn

^c Department of Science and Environmental Studies, The Centre for Education in Environmental Sustainability, The Hong Kong Institute of Education, Hong Kong, China
E-mail: keithho@ied.edu.hk

Abstract

Novel porous Cr-doped SrTiO₃ nanotubes were fabricated using a simple and economical electrospinning technique with subsequent calcination. The average outer diameter of the nanotube was approximately 100 nm, and the multimodal porous netlike framework with high specific surface area was favorable for light harvesting and matter diffusion. Photocatalytic activity was evaluated by degradation of azo dye acid orange 7 and removal of NO under visible light irradiation. The enhanced photocatalytic activity of porous Cr-doped SrTiO₃ nanotubes was attributed to the one-dimensional tube-like architecture, high specific surface area, multimodal pore size distribution, and proper Cr doping.

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Article information

DOI: https://doi.org/10.1039/C4TA05485G
Article type: Paper
Submitted: 14 Oct 2014
Accepted: 05 Jan 2015
First published: 06 Jan 2015

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J. Mater. Chem. A, 2015,3, 3935-3943

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Facile fabrication of porous Cr-doped SrTiO₃ nanotubes by electrospinning and their enhanced visible-light-driven photocatalytic properties

D. Hou, X. Hu, W. Ho, P. Hu and Y. Huang, J. Mater. Chem. A, 2015, 3, 3935 DOI: 10.1039/C4TA05485G

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Journal of Materials Chemistry A