| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1645418 | Materials Letters | 2013 | 4 Pages |
ZnGa2O4 octahedral crystallites have been prepared via a hydrothermal method assisted with cetyltrimethyl ammonium bromide (CTAB). It was investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscope (TEM). The results indicated the hydrothermal temperature and CTAB play an important role in the formation of ZnGa2O4 octahedral crystallite and its self-assembled three-dimensional rodlike structure. The photocatalytic degradation test using rhodamine B as a model pollutant showed that the photocatalytic activity of the ZnGa2O4 crystallites assisted with CTAB can be significantly decreased with temperature increasing and the best photodegradation efficiency was the sample prepared at 160 °C, of which the degradation efficiency was 97.6% in 60 min.
Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Small octahedral and self-assembled three-dimensional structure of ZnGa2O4 particles could be conveniently synthesized by hydrothermal method with the aid of CTAB. ► CTAB surfactant and hydrothermal temperature play an important role in formation of ZnGa2O4 octahedral crystallites and three-dimensional rodlike structures. ► The best photodegradation efficiency is the sample prepared at 160 °C, which are made up by small octahedral particles.
