Abstract
Abstract This study discusses the effect of corona pretreatment and subsequent loading of titanium dioxide nanoparticles on self-cleaning and antibacterial properties of cellulosic fabric. The corona-pretreated cellulosic fabrics were characterized by field emission scanning electron microscopy, and X-ray mapping techniques revealed that layers of the titania deposited on cellulose fibers were more uniform than the sample without pre-corona treatment. The self-cleaning property of treated fabrics was evaluated through discoloring dye stain under sunlight irradiation. The antibacterial activities of the samples against two common pathogenic bacteria including Escherichia coli and Staphylococcus aureus were also assessed. The results indicated that self-cleaning and antibacterial properties of the corona-pretreated fabrics were superior compared to the sample treated with TiO2 alone. Moreover, using corona pretreatment leads to samples with good washing fastness.
Highlights
Surface functionalization has been proven effective in realizing unique textiles with desired properties such as self-cleaning, antibacterial, antifungal, flame retardancy, ultraviolet blocking and superhydrophobic [1,2,3,4,5,6]
Khajavi and Berendjchi obtained self-cleaning cotton fabrics through applying the nanotitanium dioxide particles immobilized by carboxylic acids [12]
Nano-TiO2 particles distribute on the surface of the cotton fabric (Figure 1D–I)
Summary
Surface functionalization has been proven effective in realizing unique textiles with desired properties such as self-cleaning, antibacterial, antifungal, flame retardancy, ultraviolet blocking and superhydrophobic [1,2,3,4,5,6]. Nano-photocatalysts, such as TiO2, ZnO and ZrO2, have been used to impart self-cleaning and antibacterial properties to textiles [7,8,9,10]. Mohammadi et al obtained durable self-cleaning and antibacterial fabric through simultaneous synthesis of zinc oxide nanoparticles and alkaline hydrolysis of polyester fabric [11]. Khajavi and Berendjchi obtained self-cleaning cotton fabrics through applying the nanotitanium dioxide particles immobilized by carboxylic acids [12]. Karimi et al treated cotton fabrics with TiO2 nanoparticles in the presence of succinic acid as a cross-link agent and reported the significant improvement in the durability of self-cleaning property of the fabric [13]. Hu et al improved the self-cleaning properties of cotton fabric through the application of highly durable polysiloxane–TiO2 hybridized coating [16]
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