无机材料学报 ›› 2015, Vol. 30 ›› Issue (5): 549-554.DOI: 10.15541/jim20140574 CSTR: 32189.14.10.15541/jim20140574

• 研究快报 • 上一篇    下一篇

Er3+掺杂ZnWO4的合成及光催化活性研究

周 宇, 张志洁, 徐家跃, 储耀卿, 尤明江   

  1. (上海应用技术学院 材料科学与工程学院, 晶体生长研究所, 上海201418)
  • 收稿日期:2014-11-11 修回日期:2014-12-29 出版日期:2015-05-20 网络出版日期:2015-04-28
  • 作者简介:周 宇. E-mail: zhouyu564022786@163.com
  • 基金资助:

    National Natural Science Foundation of China (51342007, 51402194); Shanghai Science and Technology Committee (11JC1412400, 14YF1410700)

Synthesis and Enhanced Photocatalytic Activity of Er3+-doped ZnWO4

ZHOU Yu, ZHANG Zhi-Jie, XU Jia-Yue, CHU Yao-Qing, YOU Ming-Jiang   

  1. (Institute of Crystal Growth, School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, China)
  • Received:2014-11-11 Revised:2014-12-29 Published:2015-05-20 Online:2015-04-28
  • About author:ZHOU Yu(1989–), male, candidate of master degree. E-mail: zhouyu564022786@163.com
  • Supported by:

    National Natural Science Foundation of China (51342007, 51402194); Shanghai Science and Technology Committee (11JC1412400, 14YF1410700)

摘要:

通过水热法合成了不同浓度Er3+掺杂ZnWO4纳米棒, 并通过XRD、TEM和DRS等对其进行了表征。通过在模拟太阳光照射下光降解RhB的速度来检测ZnWO4样品的光催化活性, 研究了Er3+掺杂浓度对ZnWO4催化活性的影响。实验结果表明, 当Er3+掺杂浓度为2mol%时, 其光催化性能最好, 因为引进Er3+后, Er3+加快了电荷分离效率。

关键词: Er3+掺杂钨酸锌, 光催化剂, 罗丹明B, 电荷分离

Abstract:

Er3+-doped ZnWO4 nanorods with different doping concentrations were synthesized by a hydrothermal method. The as-prepared products were characterized by XRD, TEM and DRS. The photocatalytic activities of the as-prepared ZnWO4 samples were evaluated by photo-degradation of RhB under simulated solar light irradiation and the effects of Er3+ doping on the photocatalytic activity of ZnWO4 were investigated. The result showed that the sample with the doping concentration of 2mol% exhibited the best photocatalytic performance, which could be ascribed to the promoted charge separation efficiency of Er3+-doped ZnWO4.

Key words: Er3+-doped ZnWO4, photocatalyst, Rhodamine B, charge separation

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