Abstract
This work aims to develop durable functional cotton fabrics by growing zinc oxide (ZnO) nanoparticles on polydopamine (PDA) templates. ZnO nanoparticles were grown on the PDA-templated cotton fabrics by the hydrothermal method at room temperature. The surface morphology, chemical composition, and crystalline structure of the ZnO-coated cotton fabrics were characterized by scanning electron microscope (SEM) with energy dispersive X-ray analysis (EDX), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The ZnO nanoparticles were found to disperse evenly on the surface of cotton fabrics. The ultraviolet (UV) protection factor (UPF) value of the ZnO-coated cotton fabrics was maintained at 122.5, and 99% reduction in bacterial load was observed against Gluconobacter cerinus even after five cycles of laundering. The PDA was found to be effective in fixing the ZnO seeds tightly on the surface of cotton fabrics, resulting in excellent durability of the coating of ZnO nanoparticles.
Highlights
Functionalization of cotton fabrics is necessary in developing protective clothing and performance textiles [1]
The associated reactions of the growth of Zinc oxide (ZnO) nanoparticles on the seeded fabrics are shown in Equations (4) and (5)
The high-resolution scan of N1s (Figure 4d) shows a peak at 400 eV, and the peak is attributed to the attributed to the amino groups of dopamine [32]. These results further reveal that the surface of amino groups of dopamine [32]. These results further reveal that the surface of cotton fabrics has been cotton fabrics has been successfully templated with polydopamine
Summary
Functionalization of cotton fabrics is necessary in developing protective clothing and performance textiles [1]. The most common method is impregnating nanoparticles on the surface of cotton fabrics to endow special properties. It has been applied to endow new functions on textiles, such as antimicrobial activity [7], UV protection [8], self-cleaning [9], and superhydrophobicity [10]. Several methods have been developed to immobilize nanoparticles on the surface of cotton fabrics, including sol–gel [11], pulsed laser deposition [12], ultrasound irradiation [13], self-assembly [14], electroless deposition [15], and hydrothermal methods [16,17,18]
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