title: Core-shell VO2@TiO2 nanorods that combine thermochromic and photocatalytic properties for application as energy-saving smart coatings.
abstract: Vanadium dioxide (VO2) is a Mott phase transition compound that can be applied as a thermochromic smart material for energy saving and comfort, and titanium dioxide (TiO2) is a well-known photocatalyst for self-cleaning coatings. In this paper, we report a VO2@TiO2 core-shell structure, in which the VO2 nanorod core exhibits a remarkable modulation ability for solar infrared light, and the TiO2 anatase shell exhibits significant photocatalytic degradation of organic dye. In addition, the TiO2 overcoating not only increased the luminous transmittance of VO2 based on an antireflection effect, but also modified the intrinsic colour of VO2 films from yellow to light blue. The TiO2 also enhanced the chemical stability of VO2 against oxidation. This is the first report of such a single nanoparticle structure with both thermochromic and photocatalytic properties that offer significant potential for creating a multifunctional smart coating.
authors.affiliation: State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai institute of Ceramics, Chinese Academy of Sciences, Dingxi 1295, Changning, Shanghai, 200050, China.
authors.forename: Yamei
authors.initials: Y
authors.lastname: Li
authors.forename: Shidong
authors.initials: S
authors.lastname: Ji
authors.forename: Yanfeng
authors.initials: Y
authors.lastname: Gao
authors.forename: Hongjie
authors.initials: H
authors.lastname: Luo
authors.forename: Minoru
authors.initials: M
authors.lastname: Kanehira
mesh_terms: D000327:Adsorption; D002384:Catalysis; D011211:Electric Power Supplies; D004735:Energy Transfer; D006358:Hot Temperature; D008027:Light; D008422:Materials Testing; D043942:Nanotubes / Q000737:chemistry* / Q000528:radiation effects; D012993:Solar Energy; D014025:Titanium / Q000737:chemistry* / Q000528:radiation effects; D017968:Vanadium Compounds / Q000737:chemistry* / Q000528:radiation effects
chemical_list: D017968:Vanadium Compounds; C009495:titanium dioxide; C066075:vanadium pentoxide; D014025:Titanium
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