催化学报 ›› 2016, Vol. 37 ›› Issue (4): 494-501.DOI: 10.1016/S1872-2067(15)61056-7

• 论文 • 上一篇    下一篇

钒掺杂的钛酸钠纳米管作为多相催化剂用于室温下硫化物的氧化

Mohammad Ali Dadvar, Razieh Fazaeli   

  1. 伊斯兰自由大学戈姆分部化学系, 86145-311, 伊朗
  • 收稿日期:2015-12-31 修回日期:2016-02-04 出版日期:2016-03-30 发布日期:2016-03-30
  • 通讯作者: Razieh Fazaeli

Application of sodium titanate nanotubes doped with vanadium (VNaTNT) as a heterogeneous catalyst for oxidation of sulfides at room temperature

Mohammad Ali Dadvar, Razieh Fazaeli   

  1. Department of Chemistry, Shahreza Branch, Islamic Azad University, 86145-311, Iran
  • Received:2015-12-31 Revised:2016-02-04 Online:2016-03-30 Published:2016-03-30
  • Contact: Razieh Fazaeli

摘要:

合成了一种含有TiO2, Na和V的多相纳米管催化剂, 采用红外光谱、X射线衍射、扫描电镜、透射电镜和N2吸附-脱附法对该催化剂的结构和织构性质进行了表征, 并用于水中30% H2O2选择性氧化硫化物制备对应的亚砜. 该法具有产率极高、多相体系和简便等优点, 可用于含一系列官能团底物的氧化, 产物分离简便.

关键词: 硫化物, 亚砜, 砜类, 负载型钒催化剂, 纳米管

Abstract:

A heterogeneous titanate nanotube (TNT) catalyst containing TiO2, Na, and V has been synthesized and used in the chemoselective oxidation of sulfides to the corresponding sulfoxides in the presence of 30% H2O2 in water. Some of the advantages of our method include excellent yields, heterogeneous conditions, simplicity, compatibility with a variety of functionalities, and ease of isolation of the products. Fourier transform infrared spectroscopy, X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and N2 adsorption were used for structural and textural characterization of the catalyst (VNaTNT).

Key words: Sulfide, Sulfoxide, Sulfone, Supported vanadia catalyst, Nanotube