In human history, the pandemic of infectious diseases has been repeated repeatedly in human history, and bacteria and viruses are the main causes of infectious diseases. Therefore, finding cheap, fast and effective bacteriostatic methods has always been an important issue in human life. Traditionally, sterilization using flame, steam, chemicals (bleach, alcohol) requires long sterilization times and the chemicals may cause discomfort to personnel. In recent years, nano-photocatalyst titanium dioxide (Photocatalyst TiO2) has become the most potential candidate material to replace traditional disinfection methods because of its good antibacterial effect and reusable characteristics with UV light. This article will introduce the properties of titanium dioxide and its photocatalytic antibacterial mechanism, hoping to enable people from all walks of life to quickly grasp the background and development of titanium dioxide used in photocatalytic antibacterial.
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