Abstract
Green chemistry methods for synthesising metal oxides nanoparticles (NPs) have been extensively used due to their tremendous and remarkable advantages such as easy preparation, reliable results, non toxicity, low cost and eco-friendly. Based on these advantages we have applied a green chemistry method for synthesising Nickel Ferrite (NiFe 2 O 4 ) NPs mediated plant extract from Persa Americano seeds . XRD pattern confirmed the spinel phase structure of the synthesised NiFe 2 O 4 NPs. Fourier Transform Infrared (FTIR) spectroscopy showed the chemical bonds of the sample are consistent with the bonds assigned to NiFe 2 O 4 NPs. Morphological studies revealed the cubic shapes for some of the particles with average sizes range from 15nm to 20nm and irregular shapes for the others. The optical properties were studied using UV–Vis spectrophotometer and the obtained results indicated that NiFe 2 O 4 NPs exhibit a strong absorption behaviour in the UV range with a maximum peak at 250nm. The optical band gap calculated based on UV–Vis result was 4.25 eV. Photoluminescence (PL) spectrum of NiFe 2 O 4 NPs revealed two emission peaks, one in the UV region centred at 379nm and another a broad peak in nearly visible region (Blue emission) centred at 450nm. Magnetic studies showed a decrease in saturation magnetization Ms of NiFe 2 O 4 NPs compared to their bulk system which is attributed to surface spin disorder. Finally, NiFe 2 O 4 NPs exhibited excellent electrochemical properties which can be ascribed to: this compound possess two electrochemical active components and / or the nanocube structure of the particles which can further improve the electrochemistry through the feasible oxidation states and the synergetic effect. • A green chemistry method was successfully used to synthesis NiFe 2 O 4 NPs. • Morphological studies showed nanocubes shape of the particles. • Low value of Ms for NiFe 2 O 4 NPs was observed. • NiFe 2 O 4 NPs exhibited excellent electrochemical performance.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Physica E: Low-dimensional Systems and Nanostructures
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
