Akademik Veri Yönetim Sistemi
International Erciyes Agriculture, Animal & Food Sciences Conference, Kayseri, Türkiye, 24 Nisan 2019 - 27 Nisan 2020, ss.159
With the development of technology, scientists have focused on nanomaterials because of
their unique properties. In order to increase the application efficiency of metallic NPs,
studies on the modification of meticular NPs (such as the synthesis of organic-inorganic,
bimetallic nanocomposites and chitosan coating) have accelerated. As an alternative to the
costly, toxic and high energy requirements of traditional synthesis methods, the use of
biomolecules as a reducing and coating agent is a trend topic. In this study, NiFe2O4
nanocomposites (NK) were synthesized for the first time with pomegranate bark extract.
Briefly, 10 g pomegranate bark was holded at 80 oC for 1 hour and filtrated by using
Whatman No 1 filter paper. While mixing Ni(NO3)2.6H2O (33.3 ml, 0.1 M) and
Fe(NO3)2.9H2O (66.6 ml, 0.1 M) solutions, 50 ml pomegranate peel extract was added and
the mixture was continued for 24 hours in the dark. At the end of the reaction, the solution
was centrifuged (30 minutes at 5000 rpm), distilled water was added to the pellet and
washed by centrifugation under the same conditions. The precipitate formed was calcined
at 300 oC in the ash furnace for approximately 2 hours, and the powder obtained was used
in NP characterization studies. It was determined by SEM analysis that NiFe2O4 NK has a
spherical structure with aggregation and size of about 75 nm. According to dynamic light
scattering (DLS), NiFe2O4 NK in the solution have 405 nm effective diameter. The surface
charge of NP was recorded as -11.1 mV. The functional groups were detected by Fourier
Transform Infrared Spectroscopy (FT-IR) analysis. As a result, biological synthesis of
NiFe2O4 NK was carried out inexpensive and one step with pomegranate peel extract. It is
thought that the study will shed light on the biological synthesis and evaluation of potential
applications of NK.