Citation: LI Yue-Jun, CAO Tie-Ping, MEI Zhe-Min, XI Xiao-Tian, WANG Xia, SUN Da-Wei. Preparation and Visible-Light Photocatalytic Properties of Ce-doped Bi₂MoO₆/TiO₂ Nanofibers Heterojunction[J]. Chinese Journal of Inorganic Chemistry, ;2018, 34(4): 689-696. doi: 10.11862/CJIC.2018.082 shu

Preparation and Visible-Light Photocatalytic Properties of Ce-doped Bi₂MoO₆/TiO₂ Nanofibers Heterojunction

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

Corresponding author: MEI Zhe-Min, bczeminmei@163.com
Received Date: 4 November 2017
Revised Date: 7 January 2018

Figures(8)

By employing electrospun TiO₂ nanofiber as substrate, rare earth Ce doped Bi₂MoO₆/TiO₂ composite nanofibers were prepared via solvothermal method. The composition, morphology and optical properties were characterized by XRD, SEM, XPS, TEM, UV-Vis DRS and PL analysis. The photocatalytic properties were tested by degradation of rhodamine B under visible light. The results show that Ce³⁺ ion can be a substitute for Bi³⁺ in the crystal lattice of Bi₂MoO₆, resulting in an expansion, distortion of lattice cell and hence defects. Photocatalytic test shows that the activity of TiO₂ nanofibers under visible light can be enhanced. For example, the degradation percentage of RhB can be as high as 95.1%, which is believed to benefit from the effective charge generation, transfer and separation at the interface of Ce-doped Bi₂MoO₆/TiO₂ heterojunction. Moreover, the Ce-doped Bi₂MoO₆/TiO₂ composite nanofibers are of good stability, whose activity is hardly decreased after cycling 5 times.
- rare earth Ce doping,
- Bi₂MoO₆/TiO₂ composite nanofibers,
- heterojunction,
- visible light photocatalysis,
- electrospinning technology
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Preparation and Visible-Light Photocatalytic Properties of Ce-doped Bi₂MoO₆/TiO₂ Nanofibers Heterojunction