Pure Green Upconversion Luminescence and Enhanced Photocatalytic Activity of Flower-like Hierarchical Bi2 WO6∶Er3+ Microspheres

FAN Nai-ying; HOU Hai-ge; FENG Qing-mao; LI Ying; CHEN Ya-jie; ZHAO Bin-bin; WANG Guo-feng

doi:10.3788/fgxb20123303.0263

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Pure Green Upconversion Luminescence and Enhanced Photocatalytic Activity of Flower-like Hierarchical Bi₂ WO₆∶Er³⁺ Microspheres

paper | 更新时间：2020-08-12

- Pure Green Upconversion Luminescence and Enhanced Photocatalytic Activity of Flower-like Hierarchical Bi₂ WO₆∶Er³⁺ Microspheres
- Chinese Journal of Luminescence Vol. 33, Issue 3, Pages: 263-268(2012)
- 作者机构：
  
  黑龙江大学化学化工与材料学院功能无机材料化学省部共建教育部重点实验室,黑龙江哈尔滨,150080
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20123303.0263
  CLC： O482.31
- Received：16 November 2011，
  
  Revised：18 January 2012，
  
  Published Online：10 March 2012，
  
  Published：10 March 2012
- 稿件说明：
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范乃英, 侯海鸽, 冯清茂, 李莹, 陈亚杰, 赵彬彬, 王国凤. 花状Bi2WO6∶Er3+纳米球的纯绿色上转换荧光和增强的光催化活性[J]. 发光学报, 2012,33(3): 263-268

FAN Nai-ying, HOU Hai-ge, FENG Qing-mao, LI Ying, CHEN Ya-jie, ZHAO Bin-bin, WANG Guo-feng. Pure Green Upconversion Luminescence and Enhanced Photocatalytic Activity of Flower-like Hierarchical Bi2 WO6∶Er3+ Microspheres[J]. Chinese Journal of Luminescence, 2012,33(3): 263-268
范乃英, 侯海鸽, 冯清茂, 李莹, 陈亚杰, 赵彬彬, 王国凤. 花状Bi2WO6∶Er3+纳米球的纯绿色上转换荧光和增强的光催化活性[J]. 发光学报, 2012,33(3): 263-268 DOI： 10.3788/fgxb20123303.0263.

FAN Nai-ying, HOU Hai-ge, FENG Qing-mao, LI Ying, CHEN Ya-jie, ZHAO Bin-bin, WANG Guo-feng. Pure Green Upconversion Luminescence and Enhanced Photocatalytic Activity of Flower-like Hierarchical Bi2 WO6∶Er3+ Microspheres[J]. Chinese Journal of Luminescence, 2012,33(3): 263-268 DOI： 10.3788/fgxb20123303.0263.

摘要

用水热法合成了花状Bi

和 Bi

∶Er

球型微粒样品。Bi

∶Er

微粒在980 nm光激发下发射纯绿色上转换荧光

退火温度和Er

的掺杂量对Er

的光谱形状没有明显的影响。Bi

∶Er

除了具有上述发光性质外

在可见光照射下还存在很高的光催化活性。实验证明:Bi

和 Bi

∶Er

对罗丹明B的光降解效率分别达到68.9%和 95.3%

离子的掺杂提高了罗丹明B的吸附量以及Bi

∶Er

光催化活性。

Abstract

Flower-like hierarchical Bi

and Bi

∶Er

microspheres were synthesized by a hydrothermal method. Bi

∶Er

microspheres exhibited pure green upconversion lumminescence (

11/2

3/2

15/2

) under 980 nm excitation. The annealing temperature as well as Er

-doped content had not evident influence on the spectrum shape of Er

. Bi

∶Er

in addition to the aforementioned luminescence properties

also showed high photocatalytic activity for the degradation of RhB under visible light irradiation. The photodegradation efficiency of RhB reached 68.9% and 95.3% for Bi

and Bi

∶Er

respectively. The enhancement of photocatalytic activity would be related to the both the larger RhB adsorbance and the visible-to-ultraviolet upconversion of Er

ions.

关键词

Keywords

references

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