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Preparation and Visible-Light Photocatalytic Properties of Ce-doped Bi2MoO6/TiO2 Nanofibers Heterojunction
Author NameAffiliationE-mail
LI Yue-Jun Research Centre of Nano-Photocatalyst, Baicheng Normal University, Baicheng, Jilin 137000, China  
CAO Tie-Ping Research Centre of Nano-Photocatalyst, Baicheng Normal University, Baicheng, Jilin 137000, China  
MEI Zhe-Min Research Centre of Nano-Photocatalyst, Baicheng Normal University, Baicheng, Jilin 137000, China bczeminmei@163.com 
XI Xiao-Tian Research Centre of Nano-Photocatalyst, Baicheng Normal University, Baicheng, Jilin 137000, China  
WANG Xia Research Centre of Nano-Photocatalyst, Baicheng Normal University, Baicheng, Jilin 137000, China  
SUN Da-Wei Research Centre of Nano-Photocatalyst, Baicheng Normal University, Baicheng, Jilin 137000, China  
Abstract: 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.
Keywords: rare earth Ce doping  Bi2MoO6/TiO2 composite nanofibers  heterojunction  visible light photocatalysis  electrospinning technology
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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.
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Chinese Journal of Inorganic Chemistry