Citation: LI Yue-Jun, CAO Tie-Ping, MEI Zhe-Min, LI Xiao-Ping, SUN Da-Wei, YANG Dian-Kai. Preparation and Photocatalytic Activity of Gd-N Co-doped SrTiO₃/TiO₂ Composite Nanofibers[J]. Chinese Journal of Inorganic Chemistry, ;2019, 35(1): 82-88. doi: 10.11862/CJIC.2019.011 shu

Preparation and Photocatalytic Activity of Gd-N Co-doped SrTiO₃/TiO₂ Composite Nanofibers

Research Centre of Nano-Photocatalyst, Baicheng Normal University, Baicheng, Jilin 137000, China

Corresponding author: CAO Tie-Ping, bcctp2008@163.com
Received Date: 9 September 2018
Revised Date: 6 November 2018

Figures(10)

Gd and N co-doped SrTiO₃/TiO₂ composite nanofibers were prepared via one step hydrothermal synthesis growth of SrTiO₃ nanostructures using electrospun anatase TiO₂ nanofibers as both substance and reactant. The phase composition, microstructure, morphology and optical properties of the sample were characterized by X-ray diffraction (XRD), scanning electron mictoscopy (SEM), high-resolution transmission electron microscopy (HRTEM), energy dispersive X-ray spectroscopy (XPS), UV-Vis diffuse reflectance spectroscopy (UV-Vis DRS) and photoluminescence spectroscopy (PL). The results indicated that the heterostructure formed by SrTiO₃ and TiO₂, plays an important role in the suppression of electron-hole recombination and improves the photocatalytic performance of TiO₂ nanofibers. The excellent visible light photocatalytic activity of this substance may be due to the generation of a new band gap that enables the catalyst to absorb visible light and results in the lattice defects which acts as a recombination center of photoinduced electrons and holes. The synergistic effect of Gd-N co-doping and heterojunction could effectively improve the visible-light photocatalytic activity of SrTiO₃/TiO₂ composite nanofibers.
- Gd-N co-doped SrTiO₃/TiO₂,
- composite nanofibers,
- one step hydrothermal method,
- photocatalysis
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Preparation and Photocatalytic Activity of Gd-N Co-doped SrTiO3/TiO2 Composite Nanofibers

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通讯作者: 陈斌, bchen63@163.com

Preparation and Photocatalytic Activity of Gd-N Co-doped SrTiO₃/TiO₂ Composite Nanofibers