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Fabrication and photocatalytic property of ZnSe nanosheets

JIAJIA YIN1, GUOYING FENG1,* , SHOUHUAN ZHOU1,*

Affiliation

  1. Institute of Laser & Micro/Nano Engineering,College of Electronics & Information Engineering Sichuan University, Chengdu Sichuan, 610065, China

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