催化学报 ›› 2013, Vol. 34 ›› Issue (8): 1513-1518.DOI: 10.1016/S1872-2067(12)60645-7

• 研究论文 • 上一篇    下一篇

Magnetically recoverable, nanoscale-supported heteropoly acid catalyst for green synthesis of biologically active compounds in water

Ezzat Rafiee, Sara Eavani, Maryam Khodayari   

  1. Faculty of Chemistry, Razi University, Kermanshah, 67149, Iran
  • 收稿日期:2012-12-20 修回日期:2013-03-25 出版日期:2013-08-16 发布日期:2013-07-30
  • 通讯作者: Ezzat Rafiee
  • 基金资助:

    This work was supported by Razi University Research Council and Iran National Science Foundation.

Magnetically recoverable, nanoscale-supported heteropoly acid catalyst for green synthesis of biologically active compounds in water

Ezzat Rafiee, Sara Eavani, Maryam Khodayari   

  1. Faculty of Chemistry, Razi University, Kermanshah, 67149, Iran
  • Received:2012-12-20 Revised:2013-03-25 Online:2013-08-16 Published:2013-07-30
  • Supported by:

    This work was supported by Razi University Research Council and Iran National Science Foundation.

摘要: 12-Tungstophosphoric acid supported on aerosil silica and silica-coated γ-Fe2O3 nanoparticles was prepared and characterized using transmission electron microscopy, scanning electron microscopy, and inductively coupled plasma atomic emission spectroscopy. The catalytic activity of the two prepared catalysts was compared in the synthesis of 1,8-dioxo-9,10- diaryldecahydroacridines in water. 12-Tungstophosphoric acid was highly dispersed on the silica-coated γ-Fe2O3 nanoparticles and showed higher activity and a higher reuse number compared with the acid supported on aerosil silica. The catalyst could be recovered simply by using an external magnetic field and could be reused several times without appreciable loss of its catalytic activity.

关键词: Core-shell particle, Magnetically recoverable catalyst, Heteropoly acid, Xanthene, Hydroacridine

Abstract: 12-Tungstophosphoric acid supported on aerosil silica and silica-coated γ-Fe2O3 nanoparticles was prepared and characterized using transmission electron microscopy, scanning electron microscopy, and inductively coupled plasma atomic emission spectroscopy. The catalytic activity of the two prepared catalysts was compared in the synthesis of 1,8-dioxo-9,10- diaryldecahydroacridines in water. 12-Tungstophosphoric acid was highly dispersed on the silica-coated γ-Fe2O3 nanoparticles and showed higher activity and a higher reuse number compared with the acid supported on aerosil silica. The catalyst could be recovered simply by using an external magnetic field and could be reused several times without appreciable loss of its catalytic activity.

Key words: Core-shell particle, Magnetically recoverable catalyst, Heteropoly acid, Xanthene, Hydroacridine