title: Oriented nanostructured titanates array from low concentration alkaline solution via hydrothermal process.
abstract: Na2Ti2O5 x H2O nanowire/nanobelt array and other nanostructures were hydrothermally prepared on Ti substrate in low concentration NaOH solution (< 5 mol/L). Then the Na2Ti2O5 x H2O nanostructures were converted to H2Ti2O5 x H2O through an ion-exchange process and finally to TiO2 anatase by calcination at 450 degrees C without changing their nanostructures. The morphology of the prepared Na2Ti2O5 x H2O nanostructures could be controlled by varying the experimental parameters such as hydrothermal temperature and alkaline solution. The formation mechanism of the nanoarray was also discussed.
authors: School of Materials Science and Engineering, State Key Lab of Material Processing and Die and Mould Technology, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China.
authors: Yanjun
authors: Y
authors: Zhuo
authors: Congcong
authors: C
authors: Wu
authors: Song
authors: S
authors: Han
authors: Bo
authors: B
authors: Chil
authors: Jian
authors: J
authors: Pu
authors: Tetsuro
authors: T
authors: Jin
authors: Li
authors: L
authors: Jian
mesh_terms: D000468:Alkalies / Q000737:chemistry*; D003460:Crystallization / Q000379:methods*; D006358:Hot Temperature; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D012996:Solutions; D013499:Surface Properties; D014025:Titanium / Q000737:chemistry*; D014867:Water / Q000737:chemistry*
chemical_list: D000468:Alkalies; D046911:Macromolecular Substances; D012996:Solutions; D014867:Water; C009495:titanium dioxide; D014025:Titanium