title: Highly Anti-UV Properties of Silk Fiber with Uniform and Conformal Nanoscale TiO2 Coatings via Atomic Layer Deposition.
abstract: In this study, silk fiber was successfully modified via the application of a nanoscale titania coating using atomic layer deposition (ALD), with titanium tetraisopropoxide (TIP) and water as precursors at 100 °C. Scanning electron microscopy, X-ray energy dispersive spectroscopy, X-ray photoelectron spectroscopy, transmission electron microscope, and field emission scanning electron microscope results demonstrated that uniform and conformal titania coatings were deposited onto the silk fiber. The thermal and mechanical properties of the TiO2 silk fiber were then investigated. The results showed that the thermal stability and mechanical properties of this material were superior to those of the uncoated substance. Furthermore, the titania ALD process provided the silk fiber with excellent protection against UV radiation. Specifically, the TiO2-coated silk fibers exhibited significant increases in UV absorbance, considerably less yellowing, and greatly enhanced mechanical properties compared with the uncoated silk fiber after UV exposure.
authors.affiliation: Key Laboratory of Green Processing and Functional Textiles of New Textile Materials, Ministry of Science and Technology, Wuhan Textile University , Wuhan 430073, P. R. China.|College of Material Science and Engineering, Wuhan Institute of Technology , Wuhan 430073, P. R. China.
authors.forename: Xingfang
authors.initials: X
authors.lastname: Xiao
authors.affiliation: Key Laboratory of Green Processing and Functional Textiles of New Textile Materials, Ministry of Science and Technology, Wuhan Textile University , Wuhan 430073, P. R. China.
authors.forename: Xin
authors.initials: X
authors.lastname: Liu
authors.affiliation: Key Laboratory of Green Processing and Functional Textiles of New Textile Materials, Ministry of Science and Technology, Wuhan Textile University , Wuhan 430073, P. R. China.|Faculty of Materials Science and Engineering, Hubei University , Wuhan 430062, P. R. China.
authors.forename: Fengxiang
authors.initials: F
authors.lastname: Chen
authors.affiliation: Key Laboratory of Green Processing and Functional Textiles of New Textile Materials, Ministry of Science and Technology, Wuhan Textile University , Wuhan 430073, P. R. China.
authors.forename: Dong
authors.initials: D
authors.lastname: Fang
authors.affiliation: Key Laboratory of Green Processing and Functional Textiles of New Textile Materials, Ministry of Science and Technology, Wuhan Textile University , Wuhan 430073, P. R. China.
authors.forename: Chunhua
authors.initials: C
authors.lastname: Zhang
authors.affiliation: Key Laboratory of Green Processing and Functional Textiles of New Textile Materials, Ministry of Science and Technology, Wuhan Textile University , Wuhan 430073, P. R. China.
authors.forename: Liangjun
authors.initials: L
authors.lastname: Xia
authors.affiliation: Key Laboratory of Green Processing and Functional Textiles of New Textile Materials, Ministry of Science and Technology, Wuhan Textile University , Wuhan 430073, P. R. China.|College of Material Science and Engineering, Wuhan Institute of Technology , Wuhan 430073, P. R. China.
authors.forename: Weilin
authors.initials: W
authors.lastname: Xu
mesh_terms: D020099:Coated Materials, Biocompatible / Q000737:chemistry*; D008422:Materials Testing / Q000379:methods*; D053758:Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D056951:Photoelectron Spectroscopy; D047011:Silk / Q000737:chemistry* / Q000648:ultrastructure; D013052:Spectrometry, X-Ray Emission; D013314:Stress, Mechanical; D013818:Thermogravimetry; D014025:Titanium / Q000737:chemistry*; D014466:Ultraviolet Rays
chemical_list: D020099:Coated Materials, Biocompatible; D047011:Silk; C009495:titanium dioxide; D014025:Titanium
keywords: anti-UV properties; atomic layer deposition; nanoscale coatings; silk fiber; titania