Abstract
Multifunctionalization of self-assembled silk fabrics with antibacterial ability, UV protection and catalytic degradation activity was successfully prepared by surface modification with poly(diallyldimethylammonium chloride) (PDDA) and poly(ethylenimine) (PEI) successively. The silver nanoparticle-coated silk fabrics modified with PEI/PDDA were characterized by scanning electron microscope, Fourier transform infrared spectroscopy, X-ray diffraction, energy dispersive X-ray spectroscopy and X-ray photoelectron spectroscopy. The results indicate that a uniform distribution of silver nanoparticles is observed on the silk fabric modified with PEI/PDDA. Color feature, ultraviolet (UV) protection and antibacterial ability of the silver nanoparticle-coated silk fabrics were evaluated. Silk fabric modified with PEI/PDDA exhibits catalytic degradation activity for methyl blue (MB) with rate constants of 0.31999 min−1, and the degradation rate of 100% for the first time, which possesses a potential application in multifactional textile.
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