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

  • Biomaterials Synthesis and Characterization
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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.

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Acknowledgments

This research work was supported by a Grant (14CTAP-C077607-01) from Infrastructure and transportation technology promotion research program funded by Ministry of Land, Infrastructure, and Transport of the Korean government.

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Authors and Affiliations

  1. Department of Materials Science and Engineering, University of Seoul, Seoul, 130743, South Korea

    Hemraj M. Yadav & Jung-Sik Kim

  2. Rajarambapu Institute of Technology, Islampur, Sangli, MS, 415414, India

    Tanaji V. Kolekar

  3. Center for Interdisciplinary Research, D.Y. Patil University, Kolhapur, MS, 416006, India

    Shivaji H. Pawar

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  1. Hemraj M. Yadav
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Correspondence to Jung-Sik Kim.

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Yadav, H.M., Kolekar, T.V., Pawar, S.H. et al. Enhanced photocatalytic inactivation of bacteria on Fe-containing TiO2 nanoparticles under fluorescent light. J Mater Sci: Mater Med 27, 57 (2016). https://doi.org/10.1007/s10856-016-5675-8

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