Abstract
ZnSe
nanosheets have been fabricated by femtosecond laser ablation in distilled water at room temperature. Their crystal
structure, crystal phase, shape and size distribution, a nd photophysical property are investigated using X ray diffraction
(XRD), R aman spectroscopy, field emission scanning electron microscopy (FE SEM), transmission electron microscopy
(TEM), high resolution transmission electron microscopy (HRTEM) and UV Vis spectroscopy. The as prepared ZnSe
nanosheets efficiently catalyze the phot odegradation of methyl orange (MO) present in aqueous solutions under visible
light irradiation, exhibiting higher photocatalytic activity than ZnSe microsized particles. The high photoactivity of the
nanosheets can be attributed to the combined effects of large surface areas and the more unsaturated surface
coordination sites exposed to the solution..
Keywords
Femtosecond laser ablation, ZnSe nanosheets, Photodegradation.
Citation
JIAJIA YIN, GUOYING FENG, SHOUHUAN ZHOU, Fabrication and photocatalytic property of ZnSe nanosheets, Optoelectronics and Advanced Materials - Rapid Communications, 9, 5-6, May-June 2015, pp.682-687 (2015).
Submitted at: March 28, 2015
Accepted at: May 7, 2015