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Title: | Synthesis and Characterization of GO-ZnO Nanocomposite Material Exhibiting Photo Catalytic Degradation of Dye Waste Water |
Authors: | Mathialagan, S Ponnaiah, G P Vijay, M |
Keywords: | Hummers Method;nGO-ZnO;Visible Light;Photocatalysis |
Issue Date: | Jan-2017 |
Publisher: | NISCAIR-CSIR, India |
Abstract: | Graphene oxide (GO) nanoparticles were synthesized by improved hummer’s method and doped with ZnO as nano composite. The fabricated material surfaces of the chemically exfoliated GO sheets which are covered via a large number of hydroxyl, carboxyl and epoxy groups were introduced due to oxidation procedures. The functional groups are act as anchor sites for the insitu formation of ZnO nanoparticles. The obtained nano particles and doped nano composites were characterized by X-ray diffraction (XRD), Scanning electron microscope (SEM), Fourier transform infrared spectroscopy (FTIR) and applied for photocatalytic studies. XRD studies indicate that the GO nano sheet has the same crystal structure found in the hexagonal form of ZnO. SEM analysis provides the external morphology and crystalline structure. FTIR spectrum indicates the structural changes in GO and GO-ZnO composites. The photo catalytic performance of GO:ZnO nanocomposites was performed under UV irradiation. The present synthesized GO-ZnO photo catalyst showed an improved photo sensitized electron injection, collector and transporter by optimizing the initial crystal violet dye concentration as well as photocatalyst dosage. The dye degradation efficiency was found to be high as 93%. |
Page(s): | 44-49 |
ISSN: | 0975-1084 (Online); 0022-4456 (Print) |
Appears in Collections: | JSIR Vol.76(01) [January 2017] |
Files in This Item:
File | Description | Size | Format | |
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JSIR 76(1) 44-49.pdf | 312.48 kB | Adobe PDF | View/Open |
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