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A Highly Efficient TiO2–xCx Nano-heterojunction Photocatalyst for Visible Light Induced Antibacterial Applications
Open accessAbstract
Visible-light-induced antibacterial activity of carbon-doped anatase-brookite titania nano-heterojunction photocatalysts are reported for the first time. These heterostructures were prepared using a novel low temperature (100 °C) nonhydrothermal low power microwave (300 W) assisted method. Formation of interband C 2p states was found to be responsible for the band gap narrowing of the carbon doped heterojunctions. The most active photocatalyst obtained after 60 min of microwave irradiation exhibits a 2-fold higher visible-light induced photocatalytic activity in contrast to the standard commercial photocatalyst Evonik-Degussa P-25. Staphylococcus aureus inactivation rate constant for carbon-doped nano-heterojunctions and the standard photocatalyst was 0.0023 and -0.0081 min(-1), respectively. It is proposed that the photoexcited electrons (from the C 2p level) are effectively transferred from the conduction band of brookite to that of anatase causing efficient electron-hole separation, which is found to be responsible for the superior visible-light induced photocatalytic and antibacterial activities of carbon-doped anatase-brookite nano-heterojunctions.
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The crisis in antibiotic resistance
Neu, H. C. (1992) · Science · doi:10.1126/science.257.5073.1064 · Cited by 2,834
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Recent advances in photocatalysis for environmental applications
Byrne, C., Subramanian, G., & Pillai, S. C. (2018) · Journal of Environmental Chemical Engineering · doi:10.1016/j.jece.2017.07.080 · Cited by 820
Self-citationPhotocatalysis: an effective tool for photodegradation of dyes—a review
Saeed, M., Muneer, M., Haq, A. U., & Akram, N. (2022) · Environmental Science and Pollution Research · doi:10.1007/s11356-021-16389-7 · Cited by 523
Kapilashrami, M., Zhang, Y., Liu, Y.-S., Hagfeldt, A., & Guo, J. (2014) · Chemical Reviews · doi:10.1021/cr5000893 · Cited by 508
Arora, I., Chawla, H., Chandra, A., Sagadevan, S., & Garg, S. (2022) · Inorganic Chemistry Communications · doi:10.1016/j.inoche.2022.109700 · Cited by 291
Metadata
- Authors
- Etacheri, V., Michlits, G., Seery, M. K., Hinder, S. J., & Pillai, S. C.
- Venue
- ACS Applied Materials & Interfaces
- Publisher
- American Chemical Society (ACS)
- Published
- 2013-02-19
- Volume
- 5
- Issue
- 5
- Pages
- 1663-1672
- ISSN
- 1944-8244 (ISSN-L)
- 1944-8252
- OpenAlex
- W2133888090
- Cited by
- 263
- References
- 1
- FWCI
- 9.86
- Type
- journal article
- Language
- en
- Open access
- green
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- Etacheri, V., Michlits, G., Seery, M. K., Hinder, S. J., & Pillai, S. C. (2013). A Highly Efficient TiO2–xCx Nano-heterojunction Photocatalyst for Visible Light Induced Antibacterial Applications. ACS Applied Materials & Interfaces. https://doi.org/10.1021/am302676a
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