Preparation of single phase Zn2TiO4 spinel from a new ZnTi layered double hydroxide precursor.

Preparation of single phase Zn2TiO4 spinel from a new ZnTi layered double hydroxide precursor.

Journal of nanoscience and nanotechnology (2014-04-18)

Jianye Song, Mingzhe Leng, Hongdi Xiao, Liangji Zhang, Yaowei Qin, Wanguo Hou, Na Du, Jianqiang Liu

ZUSAMMENFASSUNG

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.

MATERIALIEN

Produktnummer

Marke

Produktbeschreibung

209988

Sigma-Aldrich

Zink, dust, <10 μm, ≥98%

718467

Sigma-Aldrich

Titan(IV)-oxid, nanopowder, 21 nm primary particle size (TEM), ≥99.5% trace metals basis

637254

Sigma-Aldrich

Titan(IV)-oxid, Anatase, nanopowder, <25 nm particle size, 99.7% trace metals basis

324930

Sigma-Aldrich

Zink, powder, <150 μm, 99.995% trace metals basis

232033

Sigma-Aldrich

Titan(IV)-oxid, Anatase, powder, 99.8% trace metals basis

14021

Sigma-Aldrich

Titan(IV)-oxid, ReagentPlus^®, ≥99%

224227

Sigma-Aldrich

Titan(IV)-oxid, Rutil, powder, <5 μm, ≥99.9% trace metals basis

248576

Sigma-Aldrich

Titan(IV)-oxid, Anatase, powder, −325 mesh, ≥99% trace metals basis

637262

Sigma-Aldrich

Titan(IV)-oxid, Rutil, nanopowder, <100 nm particle size, 99.5% trace metals basis

634662

Sigma-Aldrich

Titan(IV)-oxid, Mischung aus Rutil und Anatas, nanopowder, <100 nm particle size (BET), 99.5% trace metals basis

578002

Sigma-Aldrich

Zink, nanopowder, 40-60 nm avg. part. size, ≥99% trace metals basis

356018

Sigma-Aldrich

Zink, foil, thickness 0.25 mm, 99.9% trace metals basis

348791

Sigma-Aldrich

Titan, foil, thickness 0.127 mm, 99.7% trace metals basis

366994

Sigma-Aldrich

Titan, powder, <45 μm avg. part. size, 99.98% trace metals basis

243469

Sigma-Aldrich

Zink, granular, 20-30 mesh, ACS reagent, ≥99.8%

267503

Sigma-Aldrich

Titan, foil, thickness 0.25 mm, 99.7% trace metals basis

700347

Sigma-Aldrich

Titan(IV)-oxid, Mischung aus Rutil und Anatas, nanoparticles, <150 nm particle size (volume distribution, DLS), dispersion, 40 wt. % in H₂O, 99.5% trace metals basis

GF52959785

Zink, foil, 300x300mm, thickness 0.1mm, as rolled, 99.95+%

565148

Sigma-Aldrich

Zink, granular, 30-100 mesh, 99%

268496

Sigma-Aldrich

Titan, powder, −100 mesh, 99.7% trace metals basis

204757

Sigma-Aldrich

Titan(IV)-oxid, Rutil, ≥99.98% trace metals basis

96454