GREEN SYNTHESIS OF TiO2 NANOPARTICLES FROM CARICA PAPAYA SEEDS: ENVIRONMENTAL APPLICATIONS
Neeraja Paramala, Sandhya Rani Edadhala, Narasimha Golla*
Department of Virology, Sri Venkateswara University, Tirupati, Andhra Pradesh, India.
*Corresponding Author: Narasimha Golla
Sri Venkateswara University, Tirupati-517502, Andhra Pradesh, India.
Abstract
Recent progress in nanobiotechnology and biochar-based systems has demonstrated the significant potential of carbon-derived nanomaterials, including nano-biochar and biochar nanocomposites, in environmental remediation. Biochar has gained attention as an economical and eco-friendly material with diverse applications in water purification. Its distinct physicochemical characteristics facilitate microbial reduction, dye removal, and pH adjustment, thereby improving overall water quality. The incorporation of nanomaterials into biochar further improves its adsorption efficiency, surface activity, and durability, making it highly suitable for large-scale wastewater treatment. Advanced analytical techniques such as Scanning Electron Microscopy (SEM), Fourier Transform Infrared Spectroscopy (FTIR), and UV spectroscopy are widely used to characterize the structural and chemical properties of these materials. Among nanoparticles, titanium dioxide (TiO₂) is particularly notable for its strong antibacterial properties and high photocatalytic efficiency. Treatment with TiO₂-based biochar composites has shown a considerable reduction in key physicochemical parameters of contaminated water. The synergistic interaction between TiO₂ nanoparticles and biochar enhances pollutant degradation and disinfection in an environmentally sustainable manner. Additionally, the utilization of papaya seed biomass offers a value-added approach to agricultural waste management, contributing to sustainable water treatment strategies.
Keywords: Carika Papaya seeds, Green synthesis, TiO2NPs, Biochar, Bioremediation
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