Fe3O4@ZrO2-SO3H Nanoparticles: A new magnetically retrievable catalyst for esterification of mono- and dicarboxylic acids

Publish Year: 1397
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:

JR_JPST-4-1_001

تاریخ نمایه سازی: 22 تیر 1398

Abstract:

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. 

Authors

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

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