Preparation of magnetically recyclable ZnFe
<sub>2</sub>
O
<sub>4</sub>
nanoparticles by easy single‐step co‐precipitation method and their catalytic performance in the synthesis of 2‐aminothiophenes
作者:N. Erfaninia、R. Tayebee、E.L. Foletto、M.M. Amini、M. Dusek、F.M. Zonoz
DOI:10.1002/aoc.4047
日期:2018.2
In this work, a new synthetic route for the preparation of ZnFe2O4 nanoparticles through the chemical co‐precipitation using Fe2+ and Fe3+ ions in an alkaline solution was developed. The synthesized nanoparticles were characterized by XRD, FTIR, SEM, ICP‐MS, DRS, TGA, VSM and elemental analysis. Characterization results confirmed the formation of single ZnFe2O4 phase, with an average particle size
在这项工作中,开发了通过在碱性溶液中使用Fe 2+和Fe 3+离子进行化学共沉淀来制备ZnFe 2 O 4纳米颗粒的新合成途径。合成的纳米粒子通过XRD,FTIR,SEM,ICP-MS,DRS,TGA,VSM和元素分析进行了表征。表征结果证实形成了ZnFe 2 O 4单相,平均粒径为40 nm,高饱和磁化强度为34 emu g -1。所制备的材料用作通过Gewald反应合成2-氨基噻吩衍生物的催化剂。该热和化学稳定的纳米催化剂在环境上是无害的,经济的和可重复使用的,其可以使用外部磁体容易地回收。因此,看来该方法可以简单地扩展到工业目的。