Antibacterial performance of Ag-doped TiO₂/wood surface under visible light irradiation and its superior mould-resistance

Abstract

The TiO2/wood (TW) based on fast-growing poplar wood was in situ synthesized through one-step solvothermal method and then Ag-doped TiO2/wood (ATW)was also prepared via the solvothermal method. The morphologies, crystal structure, and chemical characteristics of the composites were carried out by SEM, XRD, XPS and FTIR. The results of XPS and FTIR showed that the nanoparticles (TiO2 and Ag) were chemically bonded to the wood surface through the combination of hydrogen groups. Spherical-like Ag nanoparticles (Ag-NPs) was about 66 nm diameter. What’s more, the TW and ATW showed excellent antibacterial against Gram positive and negative bacterium under visible light irradiation and mould-resistance properties, which illustrated a significance and practical value in high added-value of wood.

Research Progress on the Improvement of Flame Retardancy, Hydrophobicity, and Antibacterial Properties of Wood Surfaces

“…Zhang et al [ 95 ] applied a solvothermal method where nanoparticles (TiO 2 and Ag) were chemically bonded to the wood surface through a combination of hydrogen groups. The R% of Ag-doped TiO 2 /wood (ATW) reached 99.0% and 90.5% toward E. coli and S. aureus, respectively.…”