Published Paper Details:

The increasing levels of atmospheric carbon dioxide (CO?) and widespread water contamination have emerged as critical global environmental challenges. In this research paper, the development of eco-friendly and cost-effective catalytic systems is essential for sustainable remediation strategies. This study focuses on the green synthesis of metal oxide (TiO2) nano-catalysts using plant extracts Ocimum sanctum alternative to conventional chemical methods. The synthesized nano-catalysts, TiO?, were characterized using XRD, SEM and TEM, techniques to evaluate their structural and morphological properties. The green-synthesized nano-catalysts demonstrated excellent catalytic activity in two key applications: photocatalytic CO? reduction under simulated solar light, and degradation of organic pollutants in wastewater. The CO? reduction experiments showed enhanced conversion efficiency toward valuable products such as methanol and formic acid, while water purification trials exhibited significant degradation rates of dyes and pharmaceutical contaminants. The performance is attributed to the high surface area, controlled morphology, and enhanced charge separation of the green-synthesized nanomaterials.