Open AccessThe Effect of SrO Impregnation on The Characteristics of Cobalt Ferrite (CoFe2O4) Nanoparticles Synthesized by Coprecipitation
Author(s) -
Thutug Rahardiant Primadi,
Aman Santoso,
Fauziatul Fajaroh
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/833/1/012086
Subject(s) - coprecipitation , materials science , chemical engineering , magnetism , dispersity , cobalt , catalysis , nanoparticle , superparamagnetism , ferrite (magnet) , thermal stability , coating , magnetic nanoparticles , magnetization , composite material , nanotechnology , metallurgy , chemistry , organic chemistry , polymer chemistry , physics , quantum mechanics , magnetic field , engineering
Cobalt Ferrite (CoFe 2 O 4 ) nanoparticles are magnetic materials that have greater hardness than Fe 3 O 4 . CoFe 2 O 4 is widely applied in many fields, including as a heterogeneous catalyst in various chemical reactions such as photocatalysis, phenol degradation, and transesterification reactions. This is supported by the thermal and chemical stability possessed by CoFe 2 O 4 . Coating or impregnation of non-magnetic material on the surface of the ferrite, on one side will reduce its magnetism and possibly its surface area. But on the other hand, the positive impact of coating or impregnation is the increase in particle monodispersity. Weakening the magnetism of the particles will reduce the interaction of attraction between particles, so that the particles are getting more monodisperse. This will optimize its potential as a heterogeneous catalyst. In this research impregnation of strontium oxide (SrO) would be carried out on the surface of CoFe 2 O 4 . After that, the characters were compared with CoFe 2 O 4 before being impregnated. The CoFe 2 O 4 synthesis was carried out through the coprecipitation method, followed by wet impregnation with SrO. The results showed that the impregnation of SrO on CoFe 2 O 4 increased the zeta potential of the particles which indicated the stability of the particles in the dispersion.