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Preparation, Crystal Structure and Spectral Properties of Bismuth Vanadate Nanocrystals Doped with Rare Earth Ions
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Rui LIAO, Heyan HUANG, Yuanli LI, Xiaoqin PAN, Baogang GUO, Tongcai LI, Xingquan ZHANG, Haifeng LIU, Ruishi XIE
Journal of the Chinese Ceramic Society | 2020, 48(5) : 739 - 744
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Journal of the Chinese Ceramic Society | 2020, 48(5): 739-744
Preparation, Crystal Structure and Spectral Properties of Bismuth Vanadate Nanocrystals Doped with Rare Earth Ions
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Rui LIAO, Heyan HUANG, Yuanli LI, Xiaoqin PAN, Baogang GUO, Tongcai LI, Xingquan ZHANG, Haifeng LIU, Ruishi XIE
Affiliations
  • School of Life Science and Engineering, Fundamental Science on Nuclear Wastes and Environmental Safety Laboratory, Analytical and Testing Center, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China
  • LIAO Rui (1998-), female, Bachelor candidate. E-mail:

About Author:

LIAO Rui (1998-), female, Bachelor candidate. E-mail:

Published: 2020-05-20 doi: 10.14062/j.issn.0454-5648.20190532
Outline
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Different rare earth ions (i.e., Nd3+, Y3+, Eu3+) doped BiVO4 nanocrystals were synthesized by a chemical protocol method. The phase composition, crystal structure, morphology, local structure, surface chemistry and spectral properties of the nanocrystal samples were investigated by X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy, Fourier transform infrared spectroscopy, Raman spectroscopy, ultraviolet-visible diffusion reflective spectroscopy and photoluminescence spectroscopy. The results show that the sizes of different ion-doped BiVO4 crystals are in nanoscale, the BiVO4 nanocrystals doped with different ions have a tetragonal crystal structure. and the obtained nanocrystals have regular morphologies and clear profiles, indicating that the obtained nanocrystals have a good crystallization performance and exhibit a certain degree of lattice distortion. Raman peaks of doped BiVO4 nanocrystals appear at about 247, 367, 763 and 855 cm-1, which are consistent with the characteristic vibration frequencies of BiVO4 structure with tetragonal phase. UV-visible diffuse reflectance spectrum shows that the internal electronic structure of the BiVO4 nanocrystals changes after doping ions, the band gap energies of BiVO4, Eu:BiVO4, Y:BiVO4 and Nd:BiVO4 nanocrystal are 2.50, 2.74, 2.90 and 2.94 eV, respectively, indicating that doping different ions could regulate the band gap of the semiconductor nanocrystals. Based on the results by photoluminescence spectroscopy, the minimum luminescence intensity of Eu:BiVO4 nanocrystals is obtained, showing the minimum electron hole recombination efficiency, which is suggested that the Eu:BiVO4 nanocrystals has higher photocatalytic activity. The maximum luminescence intensity of Y:BiVO4 nanocrystal is obtained, thus having the maximum electron hole recombination efficiency.

chemical protocol  /  bismuth vanadate  /  doped nanocrystals  /  crystal structure  /  spectral properties  /  rare earth ions
廖蕊, 黄鹤燕, 李园利, 潘小琴, 郭宝刚, 李同彩, 张行泉, 刘海峰, 谢瑞士. 稀土离子掺杂钒酸铋纳米晶的制备、晶体结构特征及光谱性质. 硅酸盐学报, 2020 , 48 (5) : 739 -744 . DOI: 10.14062/j.issn.0454-5648.20190532
Rui LIAO, Heyan HUANG, Yuanli LI, Xiaoqin PAN, Baogang GUO, Tongcai LI, Xingquan ZHANG, Haifeng LIU, Ruishi XIE. Preparation, Crystal Structure and Spectral Properties of Bismuth Vanadate Nanocrystals Doped with Rare Earth Ions[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (5) : 739 -744 . DOI: 10.14062/j.issn.0454-5648.20190532
Year 2020 volume 48 Issue 5
24
6
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Article Info
doi: 10.14062/j.issn.0454-5648.20190532
  • Receive Date:2019-07-01
  • Online Date:2026-10-29
  • Published:2020-05-20
Article Data
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History
  • Received:2019-07-01
  • Revised:2019-09-16
Funding
Affiliations
    School of Life Science and Engineering, Fundamental Science on Nuclear Wastes and Environmental Safety Laboratory, Analytical and Testing Center, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China

Corresponding:

XIE Ruishi (1982-), male, Ph.D., Associate Professor. E-mail:
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表12种不同金属材料的力学参数
科
Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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