| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 237063 | Powder Technology | 2012 | 6 Pages |
Six-prism ZnO microtubes and three-dimensional (3D) microflowers were successfully synthesized using methenamine and zinc nitrate as precursors in an aqueous solution. The as-synthesized microtubes have an average diameter of about 1 μm and length of 7–8 μm. The as-synthesized microflowers comprise six-prism microrods with an average diameter of about 300–400 nm and length of 1–2 μm. The microrod arrays radiate outwards. The structure and composition of the samples were characterized by X-ray diffraction, scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), Fourier transform infrared spectroscopy (FTIR), UV–vis diffusive reflectance spectroscopy, and photoluminescence (PL) spectroscopy. The effects of heating temperature and time on the morphologies and orientations of the ZnO microstructures were experimentally studied. The formation mechanism is discussed in detail.
Graphical abstractSix-prism ZnO microtubes and three-dimensional (3D) microflowers were successfully synthesized using methenamine and zinc nitrate as precursors in an aqueous solution. The effects of heating temperature and time on the morphologies and orientations of the ZnO microstructures were experimentally studied. The formation mechanism is discussed in detail.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Six-prism ZnO microtubes have been prepared successfully by a simple hydrothermal method without surfactants. ► The three-dimensional (3D) microflowers have also been prepared by the route. ► The optical property of the as-synthesized samples is studied.
