Study on plasma and nano-TiO2 treatment of polyester surface and its photocatalytic performance
To prepare functional textiles with photocatalytic activity and antibacterial properties,plasma technology was used to pretreat polyester fabrics,and nano-TiO2 photocatalysts were loaded onto the surface of the fabrics to cre-ate plasma-TiC2-polyester composite photocatalytic materials.Scanning electron microscopy(SEM),X-ray energy dispersive spectroscopy(EDS),X-ray diffraction(XRD),and X-ray photoelectron spectroscopy(XPS)were em-ployed to analyze the surface morphology,crystal structure,and elemental composition of the polyester fabrics.Under simulated sunlight irradiation,methylene blue was used as an organic pollutant model to investigate the effect of plas-ma treatment time on the photocatalytic performance of the polyester fabrics.The antibacterial properties were tested using Escherichia coli and Staphylococcus aureus as model organisms to evaluate the impact of plasma treatment time.The results show that the plasma-treated polyester fabric loaded with TiO2 exhibits superhydrophilicity,with a water absorption time of only 190 ms.SEM results indicate that the amount of nano-TiO2 on the polyester fabric surface in-creases with longer plasma treatment times.Photocatalytic degradation experiments demonstrate that polyester fabric treated with plasma for 2 minutes achieves a high degradation rate of 94.5％for methylene blue after 90 minutes under simulated sunlight.Antibacterial tests reveal that the plasma-treated polyester fabric loaded with TiO2 can achieve an antibacterial rate of 91.2％against Staphylococcus aureus.
国家科技期刊平台
NSTL
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