Open AccessBonding analysis of magnetic nanoparticles (MNPS) zinc ferrite (ZnFe2O4) encapsulated with silica (SIO2)
Author(s) -
Rina Sardiana Sari,
Arif Rahman Hakim
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/382/1/012019
Subject(s) - fourier transform infrared spectroscopy , zinc ferrite , spinel , coprecipitation , materials science , nuclear chemistry , analytical chemistry (journal) , ferric , infrared spectroscopy , ferrite (magnet) , nanoparticle , chloride , zinc , chemistry , inorganic chemistry , chemical engineering , nanotechnology , chromatography , metallurgy , organic chemistry , engineering , composite material
Magnetic nanoparticles have synthesized by method ZnFe 2 O 4 coprecipitation with mixing ZnSO 4 .7H 2 O and FeCl 3 .6H 2 O at 90 °C, stirring speed with 1000 rpm during 1 hour and NaOH as copresicipitan. FeCl 3 .6H 2 O is Ferric chloride hexahydrate or also called iron (III) chloride hexahydrate, or iron (III) chloride hexahydrate is a chemical compound in the form of solid and brownish-yellow or orange. Then encapsulated to modify the surface ZnFe 2 O 4 with silica and considering the concentration of variation at 50%, 30%, 20%, 15%, 10%, and 5%. after while encapsulated of silica tested using X-Ray Diffraction (XRD). XRD is an analysis method used to identify the crystalline phase in the material by determining the parameters of the lattice structure and to get particle size. XRD tested resulted, indicating a change of normal spinel structure turned into Hexagonal Close-Packed (HCP). FTIR is one of the tools used to analyze chemical compounds. FTIR Test results are used for functional group analysis and identifying absorption peaks. Test analysisof functional groups using a Fourier Transformation Infra-Red Spectroscopy (FTIR) identifies peak absorption, while the characteristic functional groups of ZnFe 2 O 4 that are M-O, Zn-Otet, Fe-Oct, and Zn-O-Fe shifting towards wavenumber more hight after encapsulated with silica due to lower vibrational energy due to absorption by the silica.