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

Abstract

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%.