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Photo-Inactivation Staphylococcus aureus by Using Formulation of Mn-N-TiO2 Composite Coated Wall Paint

Maulidiyah Maulidiyah 1, Prima Endang Susilowati 1, Nur Khalimatussa'diyah Mudhafar 1, La Ode Agus Salim 1, Dwiprayogo Wibowo 2, Muhammad Zakir Muzakkar 1, Irwan Irwan 1, Zul Arham 3, Muhammad Nurdin 1,*
Photo-inactivation Staphylococcus aureus bacteria based on Mn-N-TiO2 composite coated wall paint is a unique study for preparing antibacterial material applied on wall house. Utilization of mixed material plays a role in activating under visible light illumination by sunlight to inactivate bacterially. Preparation of Mn-N-TiO2 composite by the sol-gel method using reflux for 3 h and coated with wall paint. The bacterial test uses Nutrient Broth (NB) to grow S. aureus, which is tested 3 times (triple). The yellow sol-gel produced by TiO2 doped Mn and N is functionally decreased bandgap as 2.8 eV. Subsequently, SEM/EDX data has characterized that the Ti, O, C, N and Mn elements are identified from composite Meanwhile, Ca is material produced from CaCO3 as wall paint colloidal. Based on these results, we report that the high concentration of Mn-N-TiO2 composite exhibited that the high inactivation response of S. aureus bacteria with 60% concentration is 87.73%. Keywords: TiO2; wall paint; S.aureus; photo-inactivation; bacterial.

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Diterbitkan pada: Biointerface Research in Applied Chemistry Platinum Open Access Journal (ISSN: 2069-5837) Volume 12, Issue 2, 2022, 1628 - 1637

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