Synthesis of TiO(2)–SiO(2)–Ag/Fiberglass with Antibacterial Properties and Its Application for Air Cleaning

[Image: see text] The TiO(2)–SiO(2)–Ag/fiberglass with antibacterial properties under UV light irradiation was synthesized. The effects of compositions of TiO(2)–SiO(2)–Ag/fiberglass, optical, and textural characteristics on the antibacterial activity were studied. The TiO(2)–SiO(2)–Ag film was coated on the surface of fiberglass carrier filaments. The temperature effect on the formation of the TiO(2)–SiO(2)–Ag film was established by thermal analysis, and the temperature treatment mode was selected as 300 °C for 30 min, 400 °C for 30 min, 500 °C for 30 min, and 600 °C for 30 min. The influence of silicon oxide and silver additives on the antibacterial properties of TiO(2)–SiO(2)–Ag films was established. Increasing the treatment temperature of the materials up to 600 °C increased the thermal stability of the titanium dioxide anatase phase, while the values of optical characteristics decreased: the film thickness decreased to 23.92 ± 1.24 nm, the refractive index decreased to 2.154 ± 0.002, the energy of the band gap width decreased to 2.8 ± 0.5, and the light absorption shifted to the visible-light regime, which is important for photocatalytic reactions. The results showed that the use of TiO(2)–SiO(2)–Ag/fiberglass allows significant decrease in the value of CFU microbial cells to 125 CFU m(–3).