无机材料学报 ›› 2012, Vol. 27 ›› Issue (9): 945-950.DOI: 10.3724/SP.J.1077.2012.11658

• 研究论文 • 上一篇    下一篇

  微乳液水热法制备钨酸铋光催化剂及性能研究

赖树挺, 张 鹏, 周武艺, 谢振华, 杨卓鸿   

  1. (华南农业大学 理学院, 生物材料研究所, 广州 510642)
  • 收稿日期:2011-10-22 修回日期:2012-01-08 出版日期:2012-09-20 网络出版日期:2012-08-28
  • 作者简介:赖树挺(1986-), 男, 硕士研究生. E-mail: Lai-Shuting@hotmail.com
  • 基金资助:

    国家自然科学基金(31101854)

Synthesis and Properties of Visible-light Photocatalytic Bi2WO6 via Microemulsion- assisted Hydrothermal Method

LAI Shu-Ting, ZHANG Peng, ZHOU Wu-Yi, XIE Zhen-Hua, YANG Zhuo-Hong   

  1. (Institute of Biomaterial, College of Science, South China Agricultural University, Guangzhou 510642, China)
  • Received:2011-10-22 Revised:2012-01-08 Published:2012-09-20 Online:2012-08-28
  • About author:LAI Shu-Ting.E-mail: Lai-Shuting@hotmail.com
  • Supported by:

    National Natural Science Foundation of China(31101854)

摘要: 采用微乳液介导水热法制备Bi2WO6和Fe/Bi2WO6光催化剂, 并研究水热反应温度、前驱体pH值、水相与表面活性剂的摩尔比w值和Fe3+掺杂量对光催化剂结构、形貌和光催化活性等方面的影响. 结果表明: 合成的Bi2WO6为15~25 nm的纳米球状结构; 当前驱体pH=1、水热温度为150℃下合成的Bi2WO6催化剂对亚甲基蓝(MB)的降解率达到93.8%; 当ω=27时合成的Bi2WO6对MB光催化降解率达到了97.8%. 研究发现当掺入1.03%的Fe3+的 Bi2WO6比纯Bi2WO6对MB的降解率提高了2倍, 达到90.2%.

关键词: Bi2WO6, 微乳液, Fe3+掺杂, 光催化

Abstract: The novel Bi2WO6 and Fe3+/Bi2WO6 photocatalysts were fabricated separately via a reverse microemulsion method. The effect factors including synthesis temperature, pH value, molar ratio of water to surfactant (ω) and Fe3+ doping on the structure, morphologies and photocatalysis performance of photocatalysts were studied in detail. These results show that Bi2WO6 possesses a high degree of crystallinity of nano-spherical structure with the size of 15–25 nm. The photodegradation rate of methylene blue (MB) is 93.8% as the Bi2WO6 photocatalyst was synthesized at 150℃. The results reveal that the photodegradation rate of MB reaches 97.8% as ω is 27. It’s found that the photodegradation rate of MB for 1.03% Fe-doped Bi2WO6 sample has increased to 90.2%, which is two times higher than that of pure Bi2WO6.

Key words: Bi2WO6, microemulsion, Fe-doped, photocatalysis

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