催化学报

催化学报 ›› 2008, Vol. 29 ›› Issue (8): 783-787.

• 研究论文 • 上一篇    

Ag3VO4纳米粒子的合成及其对可见光下降解罗丹明B的催化活性

张永来,丁红,刘福建,魏舒,刘森,和东亮,肖丰收   

  1. 吉林大学化学学院无机合成与制备化学国家重点实验室, 吉林长春 130023
  • 收稿日期:2008-08-25 出版日期:2008-08-25 发布日期:2012-06-20

Synthesis of Nanosized Ag3VO4 Particles and Their Photocatalytic Activity for Degradation of Rhodamine-B under Visible Light

ZHANG Yonglai, DING Hong, LIU Fujian, WEI Shu, LIU Sen, HE Dongliang, XIAO Fengshou*   

  1. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130023, Jilin, China
  • Received:2008-08-25 Online:2008-08-25 Published:2012-06-20

PDF

1186

被引次数

50

摘要： 利用一种简单共沉淀的方法,通过调变合成温度(0～80 ℃)成功地合成了一系列Ag3VO4样品,其粒子尺寸在100 nm～5 μm间. 通过在合成体系中添加聚乙二醇4000, Ag3VO4粒子尺寸可进一步降低至50～100 nm. 可见光下降解罗丹明B的实验结果表明, Ag3VO4样品特别是纳米尺寸的样品,显示出比当前广泛使用的P25更高的催化活性. Ag3VO4样品循环使用4次之后其光催化活性并没有明显降低,证明Ag3VO4是一种稳定有效的可见光催化剂.

关键词: 钒酸银, 纳米粒子, 光催化, 可见光, 罗丹明B, 降解

Abstract: By a simple coprecipitation process, a series of Ag3VO4 samples with crystalline particles from 100 nm to 5 μm were successfully synthesized at temperatures of0-80 ℃. The addition of polyethyleneglycol in the synthetic system resulted in the formation of nanosized particles with50-100 nm. The photocatalytic degradation of rhodamine B under visible light irradiation showed that the Ag3VO4 samples, particularly the nanosized Ag3VO4 sample, were much more active than the commercial photocatalyst titania P25. In addition, after 4 recycles, there was no significant decrease in the photocatalytic activity of Ag3VO4 samples, indicating that the Ag3VO4 was a stable photocatalyst for degradation of rhodamine B under visible light irradiation.

Key words: silver vanadate, nanosized particle, photocatalysis, visible light, rhodamine B, degradation