%0 Journal Article %T Fe3O4@ZrO2-SO3H Nanoparticles: A new magnetically retrievable catalyst for esterification of mono- and dicarboxylic acids %J Journal of Particle Science and Technology %I Iranian Research Organization for Science and Technology %Z 2423-4087 %A Tayeb Oskoie, Parya %A Mansoori, Yagoub %D 2018 %\ 04/29/2018 %V 4 %N 1 %P 1-12 %! Fe3O4@ZrO2-SO3H Nanoparticles: A new magnetically retrievable catalyst for esterification of mono- and dicarboxylic acids %K Fe3O4@ZrO2-supported sulfonic acid %K Magnetic acid catalyst %K heterogeneous catalyst %K Esterification %R 10.22104/jpst.2018.2694.1110 %X 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.  %U https://jpst.irost.ir/article_651_9fccba4c6e57d1327c363d747aa1c4d4.pdf