Enhanced photocatalytic inactivation of bacteria on Fe-containing TiO2 nanoparticles under fluorescent light

Hemraj M. Yadav, Tanaji V. Kolekar, Shivaji H. Pawar, Jung Sik Kim

Research output: Contribution to journalArticlepeer-review

51 Scopus citations

Abstract

In this paper, the photocatalytic activity of Fe-TiO2 nanoparticles (NPs) under fluorescent light was studied using Escherichia coli and Staphylococcus aureus. Fe-TiO2 NPs were synthesized using a sol–gel method and characterized with X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), UV–visible diffuse reflectance spectroscopy (UV–vis DRS) and transmission electron microscopy. The efficiency of photocatalytic inactivation towards E. coli was studied under different physicochemical parameters. The photocatalytic inactivation rate increased with increasing Fe content in TiO2 NPs and the highest inactivation was achieved for 3.0 mol% Fe-TiO2 NPs under fluorescent light. These results demonstrate that the presence of an optimum concentration of Fe in TiO2 matrix enhances the photocatalytic inactivation of TiO2 NPs under fluorescent light.

Original languageEnglish
Article number57
Pages (from-to)1-9
Number of pages9
JournalJournal of Materials Science: Materials in Medicine
Volume27
Issue number3
DOIs
StatePublished - 1 Mar 2016

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