Fe3O4@ZrO2-SO3H Nano-particles for esterification of carboxylic acids

نویسندگان

  • Parya Tayeb Oskoie Department of Applied Chemistry, Faculty of Science, University of Mohaghegh Ardabili, Ardabil, Iran
  • Yagoub Mansoori Department of Applied Chemistry, Faculty of Science, University of Mohaghegh Ardabili, Ardabil, Iran
چکیده مقاله:

In this work preparation of sulfonic acid functionalized magnetite encapsulated zirconia (Fe3O4@ZrO2-SO3H) has been reported. Structural, chemical, and magnetic properties of the magnetically supported catalyst have also been investigated by Fourier transform infrared (FT-IR) spectroscopy, wide angle X-ray diffraction spectroscopy (WXRD), thermal gravimetric analysis (TGA), energy dispersive X-ray analysis (EDX), transmission electron microscopy (TEM), vibrating sample magnetometer (VSM), Hammett acidity function and pH analysis as well as Brunauer-Emmett-Teller surface area measurement (SBET). The esterification reaction of various mono- and dicarboxylic acids with different alcohols was chosen to show the nano-catalytic activity. The reaction conditions were optimized and catalyst recovery was also demonstrated. The magnetic catalyst was magnetically separated and reused several times without significant loss of activity. 

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عنوان ژورنال

دوره 4  شماره 1

صفحات  1- 12

تاریخ انتشار 2018-04-29

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