title: Preparation of single phase Zn2TiO4 spinel from a new ZnTi layered double hydroxide precursor.
abstract: A single-source ZnTi-layered double hydroxide precursor was used to prepare single phase Zn2TiO4. This approach involves two steps: the calcination of a ZnTi-layered double hydroxide precursor and selective leaching zinc oxide from the resultant calcined products. The materials were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM) thermogravimetric and differential thermal analysis (TG-DTA), transmission electron microscope (TEM), surface area measurement and UVvis diffuse reflection spectroscopy. The results indicated that a single phase Zn2TiO4 could be successfully obtained from a ZnTi-layered double hydroxide precursor at a relatively low temperature in short calcination time. The TEM and SEM show that the diameter of Zn2TiO4 particles prepared at 900 degrees C is in the range of 20-100 nm and smaller than that prepared by the solid-state method. UV-Vis diffuse reflection spectroscopy demonstrates that the material has an energy bandgap around 3.7 eV.
authors.forename: Jianye
authors.initials: J
authors.lastname: Song
authors.forename: Mingzhe
authors.initials: M
authors.lastname: Leng
authors.forename: Hongdi
authors.initials: H
authors.lastname: Xiao
authors.forename: Liangji
authors.initials: L
authors.lastname: Zhang
authors.forename: Yaowei
authors.initials: Y
authors.lastname: Qin
authors.forename: Wanguo
authors.initials: W
authors.lastname: Hou
authors.forename: Na
authors.initials: N
authors.lastname: Du
authors.forename: Jianqiang
authors.initials: J
authors.lastname: Liu
mesh_terms: D003460:Crystallization / Q000379:methods; D006878:Hydroxides / Q000737:chemistry*; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure*; D008968:Molecular Conformation; D010316:Particle Size; D044367:Phase Transition; D013499:Surface Properties; D014025:Titanium / Q000737:chemistry*; D015032:Zinc / Q000737:chemistry*
chemical_list: D006878:Hydroxides; D046911:Macromolecular Substances; C009495:titanium dioxide; D014025:Titanium; D015032:Zinc