Photocatalytic Activity of Green Construction TiO<sub>2</sub> Nanoparticles from <i>Phyllanthus niruri</i> Leaf Extract
Annin K. Shimi, Saikh Mohammad Wabaidur, Masoom Raza Siddiqui, Md Ataul Islam, Kantilal Pitambar Rane, Thevabakthi Siluvai Muthu Arul Jeevan
Abstract
The present research work reports the facile and green synthesis of TiO 2 nanoparticles from Phyllanthus niruri leaf extract using the coprecipitation method. The plant biomolecules were responsible for the nanoproduction and exhibited reduction and stabilization activity. The green synthesized TiO 2 nanoparticles were analyzed in various characterization methods. The crystalline size (23 nm) and anatase phase of TiO 2 nanoparticles were analyzed from X‐ray diffraction study. The reduction and stabilization response functional group of TiO 2 nanoparticles was studied from FTIR analysis. The optical properties of TiO 2 nanoparticles were constructed from the UV‐DRS technique, and their calculated bandgap is 3.16 eV. The spherical morphology and their existing materials were identified using FESEM with EDX. The catalytic activity of TiO 2 nanoparticles was examined against methylene blue dye under ultraviolet and visible light irradiation. It was detected that ultraviolet irradiation showed higher photocatalytic activity than visible light irradiation. In addition, visible light irradiation provides the above 90 percentage degradation of methylene blue dye. Hence, TiO 2 nanoparticles were proposed as a potential catalyst of photocatalytic dye degradation application and water remediation activities.