Preparation of ZnS-graphene Nanocomposite and its Photocatalytic Behavior for Dye Degradation

B. N. Patil1, S. A. Acharya2*

1Department of Physics, Shri Datta Meghe Polytechnic, Nagpur, India

2Department of Physics, Rashtrasant Tukdoji Maharaj Nagpur University, Nagpur 440033, India

Adv. Mater. Lett., 2014, 5 (3), pp 113-116

DOI: 10.5185/amlett.2013.fdm.16

Publication Date (Web): Feb 02, 2014

E-mail: saha275@yahoo.com

Abstract


In the present work, ZnS-Gaphene (ZnS-GNS) composite was prepared by microwave irradiation method. The prepared samples were characterized by X-ray diffraction (XRD), to confirm the formation of GNS by reducing Graphite as well as ZnS-GNS nanocomposite. Raman spectroscopy identified D and G photon vibration mode of GNS in the ZnS-GNS composite. X-ray photoelectrons spectra are also detected presence of graphene in ZnS. UV/VIS Spectra are studied for evaluation of photocatalytic activity. The composite is explored as photocatalysts to study dye degradation using methylene blue dye in aqueous slurry under irradiation of 663 nm wavelength. Under the same conditions the photocatalytic activity of the pure ZnS is also examined. The ZnS-GNS composite is found in enhancing the rate of photodegradation of toxic dyes as compared to pure ZnS. This Graphene based metal sulphide/oxide semiconductor nanocomposites are high potential material for Photo-degradation of toxic dyes, and act as good photocatalyst.

Keywords

Graphene, zinc sulfide, nanocomposites, photocatalytic activity.

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