Pseudomonas aeruginosa antibacterial textile cotton fiber construction based on ZnO–TiO2 nanorods template

Abstract

An alternative method of synthesizing ZnO–TiO2 nanorods is through route precipitation and sintering at 600 °C. In this study, the introduction of Ti into Zn in the molar ratio Ti:Zn (1:3) produced a composite ZnO-Low TiO2 (ZnO-LTiO2) while 1:1 produced ZnO-High TiO2 (ZnO–HTiO2). The effect of the Ti introduced on the anti-bacterial properties of ZnO–TiO2 nanorods was investigated with the product structure characterized by XRD and the optimal intensity at 2θ: 31.72°, 34.37°, 36.19° showed a Wurzite structure and a crystal size of 35.8–41.5 nm. The average pore diameters for ZnO-LTiO2 and ZnO–HTiO2 were around 5.159 nm and 6.828 nm while the surface areas were 15.692 m2/g and 15.421 m2/g respectively. The anti-bacterial textile fiber construction was prepared using dip-spin coating with the application of an adipic acid crosslinker for 6 h and stable coating up to 10 times washing. The improvement of Pseudomonas aeruginosa (Pa) antibacterial properties in the textiles with coating had an inhibition zone of 20.5–25.0 mm and 16.2 mm without the coating. The elements of the cotton fiber construction include C at 54.60%, O at 40.89%, Ti at 0.81% and Zn at 2.60% while the TG-DTA analysis conducted showed an increase in the heat stability of the textile fibers to a temperature of 400°C, after which the textiles were modified by coating ZnO–TiO2 nanorods. The findings of this research could be successfully applied to improve the antibacterial properties of textiles.

Keywords

• Materials science
• Materials chemistry
• Fiber construction
• ZnO–TiO2 template nanorods
• Pseudomonas aeruginosa