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has been cited by the following article:

• TITLE: Preparation of Anatase Titanium Dioxide Nanoparticle Powders Submitting Reactive Oxygen Species (ROS) under Dark Conditions

  AUTHORS: Thi Minh Phuong Nguyen, Perrine Lemaitre, Masaki Kato, Ken Hirota, Kazuhiko Tsukagoshi, Hirohisa Yamada, Atsuki Terabe, Hideto Mizutani, Shingo Kanehira

  KEYWORDS: Anatase, Microbial Activity under Dark Conditions, Potassium K, Phosphorous P

  JOURNAL NAME: Materials Sciences and Applications, Vol.12 No.2, February 4, 2021

  ABSTRACT: Recently, under the circumstances of pandemic of COVID-19 much attention has been paid to titanium dioxide TiO2 as bactericidal agent; however, conventional TiO2 requires ultraviolet radiation or visible light to exercise its photocatalytic properties and its induced antimicrobial activity. In order to expand its applications directed at wide civil life, antibacterial TiO2 being usable under dark conditions has been demanded. The present paper describes the powder characterization of newly developed potassium K and phosphorous P co-doped nanometer-size anatase TiO2 powders using X-ray diffraction (XRD), scanning and transmission electron microscopies (SEM & TEM), Brunauer-Emmett-Teller method (BET), fourier-transform infrared spectroscopy (FT-IR), X-ray absorption fine structure (XAFS), electron spin resonance (ESR) and chemiluminescence (CL). It was found for the first time that thus prepared anatase TiO2 could submit much reactive oxygen species (ROS) even in the dark, which has close relation with bactericidal activity in light interception.