Akademik Veri Yönetim Sistemi
IV. INTERNATIONAL ISTANBUL SCIENTIFIC RESEARCH CONGRESS, İstanbul, Türkiye, 2 - 04 Nisan 2021, ss.173-180
In this study presents the synthesis, characterizations and photocatalytical activity of NiFe2O4
nanoparticles. Nickel ferrite nanoparticles were prepared by co-precipitation method and the obtained
samples were characterized by using XRD, FTIR and SEM/EDAX techniques. XRD analysis showed
a single-phase cubic structure of Ni ferrite nanoparticles. FTIR spectrum confirmed the formation of
the ferrite phase. The SEM images displays the spherical agglomeration of grains because of the
difference in the magnetic structure of the nanoparticles. The nickel ferrite formation shows the peaks
of relevant elements (Fe, Ni and O) in the EDAX spectra. The photocatalytic activity of NiFe2O4
nanoparticle was determined by using removal of rhodamine B from wastewater under visible light
and uv irradiation. The photocatalytic degradation efficiencies were determined as 87% and 65%
respectively, under visible light and uv irradiation at 120 min. In addition, the optimum amount of
catalyst and initial dye concentration were determined belong to this photocatalytic reaction. NiFe2O4
nanoparticles were determined that photodegradation conformed pseudo first order kinetic. To
determine the contribution of the reactive species in charge of the photocatalytic degradation of
NiFe2O4 nanoparticles, radical scavenging experiments were performed and a possible mechanism was
proposed