Synthesis of antibacterial film CTS/PVP/TiO2/Ag for drinking water system

► This study introduces a new function film (CTS/PVP/TiO2/Ag) for sterilization in drinking water storage. ► The TiO2 and nano-Ag in the film is main chemicals having anti-bacteria activity. ► The membrane has a favorable compatibility and heat stability. ► The membrane has sustainable antibacterial activity and is safe in use.