Preparation of Eu3+-doped NaBi(MoO4)2/TiO2 Composite Fibers and Its Photocatalytic Properties for Water Splitting Hydrogen Evolution

被引：0
|
作者：
Li Y. [1 ]
Cao T. [1 ]
Sun D. [1 ]
Zhao Y. [1 ]
Zhao X. [1 ]
机构：
[1] Research Centre of Nano Photocatalyst Materials of Baicheng Normal University, Baicheng
来源：
Zhongguo Xitu Xuebao/Journal of the Chinese Rare Earth Society | 2020年 / 38卷 / 02期
关键词：
Composite fibers; Eu[!sup]3+[!/sup]-doping; Hydrogen evolution; NaBi(MoO[!sub]4[!/sub])[!sub]2[!/sub]/TiO[!sub]2[!/sub; Rare earths;
D O I：
10.11785/S1000-4343.20200204
中图分类号：
学科分类号：
摘要：
By employing electrospun TiO2 nanofibers as substrate, rare earth Eu3+-doped NaBi(MoO4)2/TiO2 composite fibers were prepared via hydrothermal method. Their composition, morphology and optical properties of the composite fibers were characterized by XRD, SEM, XPS, TEM, UV-Vis-DRS and PL analysis. The photocatalytic water splitting for hydrogen evolution was investigated over Eu3+-doped NaBi(MoO4)2/TiO2 composite fibers with triethanolamine as an electron donor. The results showed that Eu3+ ion can be a substitute for Bi3+ ion in the crystal lattice of NaBi(MoO4)2, resulting in an expansion and distortion of lattice cell and defects. It is believed to benefit from the effective charge generation, transfer and separation at the interface of Eu3+-doped NaBi(MoO4)2/TiO2 heterojunction.The optimal hydrogen evolution rate reaches 7.86 mmol•h-1•g-1. © 2020, Editorial Office of Journal of the Chinese Society of Rare Earths. All right reserved.
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页码：153 / 159
页数：6
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