Sustainable Water Remediation Through Degradation of Organic Pollutants Using Green-Synthesized Cerium and Sulfur-Doped TiO₂ Nanoparticles.

Authors

Fahim Ullah, Jafar Saifullah, Sufian Rasheed, Saima Gul, Safina Sharif, Syed Shakil Abbas, M I Khan

Published in

Chemistry & biodiversity. Volume 23. Issue 10. Pages e71765.

Abstract

Eco-friendly photocatalysis offers a sustainable approach for degrading hazardous water pollutants. In this study, sulfur-doped (S─TiO₂) and cerium-doped (Ce─TiO₂) nanoparticles were synthesized via a green route using Syzygium cumini L. leaf extract. Comprehensive characterization via SEM, FTIR, UV-vis diffuse reflectance spectroscopy, photoluminescence (PL), Raman, and XPS confirmed successful dopant incorporation, introduced mid-gap defect states, narrowed the band gap (2.0-2.5 eV), and promoted efficient charge separation. Photocatalytic performance was optimized across varying parameters including catalyst loading, solution pH, and contact time. Under optimized conditions, S─TiO₂ nanoparticles achieved degradation efficiencies of 98.5% for Rhodamine B (RhB) within 90 min, 96.0% for omeprazole (OMZ) within 30 min, and 98.1% for chlorpyrifos (PCPS) within 40 min, slightly outperforming Ce─TiO₂ (97.3%, 95.55%, and 97.3%, respectively). Radical scavenger studies confirmed •OH and •O^2- as the primary reactive species driving degradation. Reusability evaluations demonstrated exceptional structural and chemical stability over successive cycles with minimal activity loss. Benchmarked against literature standards, these green-synthesized nanostructures present robust potential for practical wastewater remediation applications.

PMID:
42837470
Bibliographic data and abstract were imported from PubMed on 07 Oct 2026.

Read full publication at:
Please sign in to see all details.

Stats

1-terrible, 9-excellent. How would you rate this publication? Sign in in to submit your rating.

Post a comment

You need to be signed in to post comments. You can sign in here.

Comments

There are no comments yet.