Daub, N. A. and Aziz, F. and Mohd. Zain, N. A. and Lau, W. J. and Yusof, N. and Salleh, W. N. W. and Jaafar, J. (2021) Photocatalytic disinfection of bacteria under visible light irradiation by BiFeO3 photocatalyst. In: Regional Congress on Membrane Technology and Regional Conference on Environmental Engineering (RCOM & RCEnvE 2020), 16 - 17 January 2021, Johor, Malaysia.
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Official URL: http://dx.doi.org/10.1088/1757-899X/1142/1/012002
Abstract
BiFeO3 nanoparticles was synthesized by sol gel auto combustion. The as-synthesized BiFeO3 were characterized by X-ray diffraction (XRD), UV-Vis diffuse reflectance spectra (DRS) and Brunauer-Emmett-Teller (BET) analysis. The disinfection activities towards Gram-positive Staphylococcus aureus (S.aureus) were examined under visible light irradiation. The results showed a complete inactivation of 3 × 106 CFU/mL S.aureus was achieved within 20 min. The disruption of bacterial cell structure was observed by Transmission electron microscope (TEM). The cells were severely damaged after being exposed to BiFeO3 under visible light irradiation. Hence, the results demonstrated the potential application of perovskite-type photocatalyst, BiFeO3 in photocatalytic disinfection of various microorganisms.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Uncontrolled Keywords: | Staphylococcus aureus (S.aureus), Transmission electron microscope (TEM) |
| Subjects: | T Technology > TP Chemical technology |
| Divisions: | Chemical and Energy Engineering |
| ID Code: | 96685 |
| Deposited By: | Widya Wahid |
| Deposited On: | 17 Aug 2022 06:51 |
| Last Modified: | 17 Aug 2022 06:51 |
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