ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Synthesis of Ce-TiO₂ nanoparticles using Jasminum fluminense leaf extract: their application to the degradation of textile dye and bacterial pathogens control

Vishalee S and Venkatachalam K

Department of Analytical Chemistry, University of Madras, Guindy Campus, Chennai, India

E-mail: vishalee27@gmail.com

Received: 22 January 2025  Accepted: 18 December 2025

Abstract:

The eco-friendly approach of green synthesis of metal oxide nanoparticles presents a sustainable alternative to traditional chemical methods. This research explores the synthesis of anatase TiO₂ nanoparticles and Ce-TiO₂ nanoparticles using Jasminum fluminense leaf extract. Characterization, with X-ray Diffraction (XRD) confirms high crystalline nature and Energy Dispersive X-ray analysis (EDX) analysis confirms the purity of the synthesized nanoparticles. FESEM analysis reveals that Ce doping reduces agglomeration and results in uniform ion dispersion. The nanoparticles demonstrated over 90% efficiency in the photocatalytic degradation of Allizarin Red S and Diazin Green S. Moreover, Ce-TiO₂ exhibited notable antibacterial activity against Enterococcus aerogenes, Acetobacter baumannii, Pseudomonas aeruginosa, Klebsiella pneumoniae, Shigella dysenteriae, and Staphylococcus aureus, with the largest inhibition zone 34 mm against Staphylococcus aureus. These findings highlight Ce-TiO₂ as a highly effective photocatalyst with a broad-spectrum of antibacterial capabilities.

Keywords: Ce-TiO2; Semiconductor; Photocatalytic degradation; Allizarin red S; Diazin green S; Antibacterial activity

Full paper is available at www.springerlink.com.

DOI: 10.1007/s11696-025-04610-7

Chemical Papers 80 (5) 5065–5087 (2026)