%0 Journal Article %T Fabrication of 2-Chloropyridine-Functionalized Fe3O4/Amino-Silane Core–Shell Nanoparticles %J International Journal of Nanoscience and Nanotechnology %I Iranian Nanotechnology Society %Z 1735-7004 %A Nikje, M.M.A. %A Sarchami, L. %A Rahmani, L. %D 2015 %\ 03/01/2015 %V 11 %N 1 %P 39-44 %! Fabrication of 2-Chloropyridine-Functionalized Fe3O4/Amino-Silane Core–Shell Nanoparticles %K Magnetite nanoparticle %K APTS coating %K 2-Chloropyridine modification %K Sol-gel Method %R %X In this report, magnetic iron oxide nanoparticles were synthesized via coprecipitation of Fe2+ and Fe3+ with ammonium hydroxide, and the surface of synthesized nanoparticles was organically functionalized by commercially available amine coupling agent namely, 3-aminopropyl trimethoxysilane (APTS) by using well-known sol–gel method. Further reaction of the synthesized Fe3O4@APTS core-shell magnetite nanoparticles with 2-Chloropyridine via nucleophilic aromatic mechanism in position 2 led to the target molecule Fe3O4@APTS/ 2-Chloropyridine. All prepared materials e.g the magnetite iron oxide, Fe3O4@APTS nanoparticles as well as organically coated Fe3O4@APTS/ 2-Chloropyridine magnetite particles were characterized using Fourier transforms infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), and thermogravimetric analysis (TGA). SEM images showed that the Fe3O4@APTS/ 2-Chloropyridine nanoparticles were roughly spherical with average size of 45-55 nm. FTIR indicated the formation of a layer of APTS-Py on the surface of the Fe3O4 magnetite core. Thermogravimetric analysis of the coated APTS-Py on the Fe3O4 surface revealed that 8 % of organic materials coated on iron oxide nanoparticles.       %U https://www.ijnnonline.net/article_12361_1815017ec99e8d41724db4c69c8d90ac.pdf