Functionalized Cotton Fabrics with Nano-TiO2-Cellulose Coatings
Bandu Madhukar Kale1, Zehra Yildiz2, Jakub Wiener1, Hana Krizova1, Abdul Jabbar1, Irena Lovetinska Slamborova1, Samson Rwawiire1, Nilkanth Kisan Kale3 and Jiri Militky1
1Department of Material Engineering, Technical University of Liberec, Studenska 2, 461 17 Liberec, Czech Republic; 2Department of Textile Engineering, Marmara University, 34722, Istanbul, Turkey; 3Sir Parshuram College, Tilak road, Sadashiv Peth, Pune-411030, Maharashtra, India
Abstract: Functional cotton fabrics having self-cleaning, antibacterial, and antifungal properties were developed with the help of nano-titanium dioxide (TiO2)-cellulose coatings. Coating formulations were prepared by dispersing the TiO2 nanoparticles in cellulose solution in sulfuric acid. Cellulose layer helped to bind the TiO2 nanoparticles to the cotton fabric surface. Scanning electron microscopy (SEM) and X-ray diffraction (XRD) patterns proved the attachment of nano-TiO2-cellulose layer to the cotton fabric surfaces. Self-cleaning ability of coated cotton fabrics were evaluated by using red wine stain degradation under UV light. Samples with 3, 5, and 10% nano-TiO2 loadings showed almost complete degradation of red wine stain after 15 minutes of irradiation under UV light. The bacteria reduction performance of nano-TiO2-cellulose coated cotton fabrics against Staphylococcus aureus (SA), and methicillin-resistant Staphylococcus aureus (MRSA) bacteria were recorded as 98.2% and 81.6%, respectively. 5 and 10% nano-TiO2-cellulose coated samples showed significant disinfection of cotton fabric from fungal colonization.
Keywords: TiO2 Nanoparticles, Antibacterial, Antifungal, Cellulose Coating, Self-Cleaning, Cotton Fabric.