Title
A comparison study between novel ternary retrieval NiFe2O4@P-doped g-C3N4 and Fe3O4@P-doped g-C3N4 nanocomposite in the field of photocatalysis, H2 energy production and super capacitive property
Author
Priti Mishra, Lopamudra Acharya, Kulamani Parida
Year
2020
Journal
Materials Today: Proceedings
Abstract
In this paper, we report the synthesis of magnetically separable stable phosphors doped g-C3N4@NiFe2O4 and phosphors doped g-C3N4@Fe3O4 nanocomposite with their application as retrievable visible-light photocatalyst. Their comparative performance is investigated for photo-degradation of a dye rhodamine B (RhB) as an organic pollutant. The Fe3O4 nanoparticles prepared via sol–gel assisted method and annealed at 200–400 °C. Phosphors doped g-C3N4 (PCN) prepared by adding NH4(H2PO4) to an aqueous solution of melamine and NiFe2O4 nanoparticles prepared by the simple sol–gel method followed by calcination. The crystal structure, morphology, microscopic components and properties of the synthesized samples characterized by XRD, SEM, TEM, photoluminescence (PL) emission spectroscopy, CV analysis for super capacitive nature and zeta potential. Two simplified kinetic models, pseudo-first-order and pseudo-second-order, were applied to predict the adsorption rate constants. The NFO@PCN showed excellent photostability and was able to evolve 904 µmol h−1 H2 in comparison to M@PCN (556 µmol h−1) under visible-light irradiation. The results reveal an approach to synthesized large scale ferrite nanoparticles, and improve the magnetic properties of ferrite nanoparticles, and also provide the potential candidates to synthesis co-doped functional magnetic materials.
Instrument
V-750, FP-8300
Keywords
Absorption, Diffuse reflectance, Band gap, Semiconductors, Fluorescence, Photoluminescence, Nanostructures Optical properties, Materials