[16a-PB02-1~11] 9.5 New functional materials and new phenomena

[16a-PB02-11] Synthetic control of TiO₂ nanoneedles focusing on the substrate surface water absorption performance and characterization of their physical properties

〇(M2)Tomoya Shirasaka^1,2, Kaoru Igarashi¹, Yukari Miyazaki², Negishi Nobuaki² (1.Chiba Tech., 2.AIST)

Keywords:nanoneedle, water purification, mechano-bactericidal effect

Since the finding of the mechano-bactericidal effect by nanopillar arrays in 2012, the synthesis of biomimetic sterilization materials has been studied. They are mainly designed for sterilization at the air-solid interface, and the treatment of bacteria in the water is not almost studied. In order to find a new synthesis method of TiO₂ nanoneedles suitable for the treatment of bacteria in water, we investigated a direct synthesis method of TiO₂ nanoneedles on the substrate surface by focusing on the water absorption property of the substrate.