Simple synthesis and enhanced photocatalytic performance of La-modified ZnO nanosheet-assembled flower-like microstructures
Abstract
La-modified ZnO nanosheet-assembled flower-like microstructures, were successfully obtained through a facile two-step solution-based strategy including a simple aqueous solution and subsequent impregnation technique. Scanning electron microscopy (SEM), X-ray diffraction (XRD) and ultraviolet-visible spectrometer (UV-Vis) were employed to characterize the morphology, composition, crystal structure and photocatalytic properties of prepared products in detail. The photocatalysis test results revealed that the La-modified ZnO nanoflowers displayed greatly enhanced catalytic performance and the decomposition efficiency was up to about 99.60%, which was mainly ascribed to the increased charge separation rate on the La-modified surface of ZnO nanosheets and the high surface area of the flower-like structure.
- Publication:
-
Functional Materials Letters
- Pub Date:
- May 2014
- DOI:
- 10.1142/S1793604714500520
- Bibcode:
- 2014FML.....750052Z
- Keywords:
-
- La-modified ZnO;
- nanoflowers;
- photocatalysts;
- impregnation