Introduction: The present work explores a green synthesis approach for TiO₂ nanoparticles (TiNPs) aimed at addressing environmental pollution. The increasing demand for eco-friendly and efficient water purification methods has led to the investigation of TiNPs synthesized using plant extracts. Synthesized TiNPs have been utilized for the photocatalytic degradation and adsorption of toxic organic pollutants such as Congo Red (CR), Rhodamine B (RhB), and Evans Blue (EB) dyes. Method: TiNPs were synthesized using a microwave-assisted technique, employing irradiation at 200 W for 180 seconds. Titanium (IV) butoxide served as the precursor, and Magno leaf extract was used to facilitate the reduction and stabilization of the nanoparticles. Surface morphology analysis was conducted to confirm the structure and shape of the synthesized TiNPs. Results: Surface analysis confirmed predominantly spherical TiNPs exhibiting excellent UVdriven photocatalytic activity, achieving 93% degradation of EB within 30 minutes. They also demonstrated high adsorption capacity (512.51 mg/g), pH- and temperature-dependent performance, and strong reusability over three cycles. discussion: Surface analysis revealed that the TiNPs exhibited a predominantly spherical-like morphology. The photocatalytic efficiency of the TiNPs has been evaluated under UV light against CR, RhB, and EB dyes. The synthesized TiNPs achieved a high degradation efficiency against EB in 30 min. Moreover, the TiNPs showed excellent adsorption properties, with performance influenced by solution pH and temperature. The NPs also demonstrated strong reusability, maintaining their performance over three successive recycling cycles. Discussion: The green microwave-assisted synthesis of TiNPs using Magno leaf extract yielded highly active photocatalysts with outstanding adsorption capacity. These findings highlight the suitability of these eco-friendly TiNPs for sustainable water purification applications. Their rapid degradation efficiency and strong reusability further underscore their potential for practical environmental remediation. Conclusion: This study demonstrates the rapid, green microwave synthesis of TiNPs with excellent photocatalytic and adsorption performance. Their high efficiency and recyclability make them promising candidates for sustainable water purification.
Saini et al. (Tue,) studied this question.