Abstract
The generation and regulating of oxygen vacancies in Bi2MoO6 was achieved at room temperature through a simple NaOH etching process. The photocatalytic performance of the four types of Ov-Bi2MoO6 was assessed under visible light exposure using methicillin-resistant Staphylococcus aureus (MRSA) as the targeted. The study demonstrated that 0.2 Ov-Bi2MoO6 exhibited the highest photocatalytic activity, achieving a 7.11-log reduction in MRSA concentration within 3 h. Furthermore, free radical capture experiments and EPR experiments indicated that the active species O2–, 1O2, and OH played a significant role in the process. EPR experiments revealed the presence of oxygen vacancies, leading to enhanced light absorption of Bi2MoO6 and improved separation and migration of photogenerated electrons and holes. This study demonstrated that 0.2 Ov-Bi2MoO6 effectively deactivated methicillin-resistant Staphylococcus aureus, offering a promising approach for the photocatalytic removal of drug-resistant bacteria.
Published Version
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