ABSTRACT:

Graphitic carbon nitride (g-C₃N₄) and zinc oxide (ZnO) are two promising materials that have been extensively studied for their potential applications in photocatalytic and biomedical fields including biosensors, bioimaging, photodynamic therapy, drug delivery, chemotherapy, and the antimicrobial segment because of its biocompatible nature.For biogenic synthesis of ZnO will be carried out using aqueous leaf extract of Rosa indicia. The synthesis of g-C₃N₄/ZnO nanocomposites will be achieve through hydrothermal synthesis, to produce materials with enhanced photocatalytic and biomedical properties due to development of heterojunction. Synthesized g-C₃N₄/ZnO hybrid nanostructure may have band gap around 2.85eV to 3.01eV. The photocatalytic activity of the composites is evaluated through the degradation of organic pollutants under simulated solar irradiation, demonstrating their potential for environmental remediation. In biomedical applications, the g-C₃N₄/ZnO nanocomposites exhibit biocompatibility and are explored for use in drug delivery systems, tissue engineering, and antimicrobial coatings. The incorporation of g-C₃N₄/ZnO nanocomposites into biomaterials enhances their mechanical, thermal, and electrical properties, making them suitable for various biomedical applications. Techniques such as X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier-transform infrared spectroscopy (FTIR), and UV-Vis spectroscopy are employed to analyze the crystal structure, surface morphology, particle size, chemical composition, and optical properties of the composites. The comprehensive characterization of these materials is crucial for their successful development and utilization in various technological domains.