AUTHOR=Ali Asghar , Amin Muhammad , Tahir Muhammad , Ali S. S. , Hussain Asif , Ahmad Imtiaz , Mahmood Asif , Farooq M. Umer , Farid Muhammad Asim 

TITLE=g-C3N4/Fe3O4 composites synthesized via solid-state reaction and photocatalytic activity evaluation of methyl blue degradation under visible light irradiation

JOURNAL=Frontiers in Materials

VOLUME=10

YEAR=2023

URL=https://www.frontiersin.org/journals/materials/articles/10.3389/fmats.2023.1180646

DOI=10.3389/fmats.2023.1180646

ISSN=2296-8016

ABSTRACT=<p>This study applied the solid-state reaction technique to synthesize g-C<sub>3</sub>N<sub>4</sub>, Fe<sub>3</sub>O<sub>4</sub>, and g-C<sub>3</sub>N<sub>4</sub>/Fe<sub>3</sub>O<sub>4</sub> composites in various ratios. XRD confirmed the formation of g-C<sub>3</sub>N<sub>4</sub>, Fe<sub>3</sub>O<sub>4</sub>, and a g-C<sub>3</sub>N<sub>4</sub>/Fe<sub>3</sub>O<sub>4</sub> heterostructure. SEM confirmed the rod-shaped structure of Fe<sub>2</sub>O<sub>3</sub> and the layered-like fabrication of g-C<sub>3</sub>N<sub>4</sub>. The E<sub>g</sub> of g-C<sub>3</sub>N<sub>4</sub>/Fe<sub>3</sub>O<sub>4</sub> was approximately 1.9 eV, making it a beneficial composite material for visible response in photocatalysis activity, which was confirmed by UV-Vis spectroscopy. Dielectrics were used to study ferrite nanoparticles and provide information on the mechanism of conductivity in the parts of the dielectric that responded to an applied alternating electric field. In polycrystalline ceramics, the resistive and capacitive grains, contributions, electrode specimen interfaces, and grain boundaries may all be distinguished using impedance analysis, a crucial tool for the study of complicated electrical performance. The g-C<sub>3</sub>N<sub>4</sub>/Fe<sub>3</sub>O<sub>4</sub> composite material showed high photocatalytic activity against methylene blue (MB) dye.</p>