comparitive study of pure zno and copper doped zno nanoparticles synthesized via coprecipitation method
V.Kalaiselvi,N.Jayamani,M.Revathi
Published in International Journal of Advanced Research in Physics and Development
ISSN: xxxx-xxx Impact Factor:xx Volume:1 Issue:1 Year: 16 March,2015 Pages:1-8
Abstract
The ZnO nanoparticles has unique properties like wide band gap energy, large excitation energy, acts as a functional material near UV emission, optical transparency(1).It has versatile applications in optoelectronic devices, which creates the immense interest in its synthesis. Pure ZnO & Copper doped ZnO nanoparticles were prepared by Controlled Precipitation method .The structural characterization of the samples was investigated by X-ray diffraction and Scanning electron microscopy.Tthe crystalline size of Pure ZnO nanoparticles is 22nm & Copper doped Nanoparticles is 11 nm is revealed by XRD. SEM micrographs reveals that both images are cluster shaped. The FT-IR showed that various functional groups have been formed. UV visible spectroscopy determines the band gap energy of ZnO nanoparticles.
Kewords
Pure ZnO, Copper doped ZnO, XRD, SEM, UV, FTIR.
Reference
1) Z. Bahsi, A. Oral, Effects of Mn and Cu Doping on the Microstructures and Optical Properties of Sol-gel Derived ZnO Thin Films, Opt. Mater., 29, 2007, 672–678. 2) K. Rekha, M. Nirmala, M. Nair, A. Anukaliani, Structural, optical, photocatalytic and antibacterial activity of zinc oxide and manganese doped zinc oxide nanoparticles, Physics B: Condensed Matter , 405, 2010, 3180–3185. ͦ 3) R. Ullah, J. Dutta, Photocatalytic degradation of organicdyes with manganese-doped ZnOnanoparticles,J.Hazard. Mater. 156, 2008, 194–200. 4) M. Fu, Y. Li, Siweiwu, P. Lu, J. Liu, F. Dong, Sol–gel preparation and enhanced photo catalytic performance of Cu-doped ZnO nanoparticles, Appl. Surf. Sci., 258, 4, 2011, 1587-1591. 5) C. Xu, L. Cao, G. Su, W. Liu, H. Liu, Y. Yu, X. Qu, Preparation of ZnO/Cu2O compound photocatalyst and application in treating organic dyes, J.Hazard. Mater, 176, 2010, 807–813 6) Z. Liu, J. Deng, J. Deng, F. Li, Fabrication and photo catalysis of CuO/ZnOnano-composites via a new method, Mater. Sci. Eng. B, 150, 2008, 99–104. 7) D. Fernandes, R. Silva, A. Winkler Hechenleitner, E. Radovanovic , M. CustуdioMelo, E. Pineda, Synthesis and characterization of ZnO, CuO and a mixed Zn and Cu oxide, Mater.Chem. Phys., 115, 2009, 110–115. 8) S. Muthukumaran, R. Gopalakrishnan, Structural, FTIR and photoluminescence studies of Cu doped ZnO nanopowders by co-precipitation method, Opt. Mater., 34, 2012, 1946–1953. 9) B. Donkova, D. Dimitrov, M. Kostadinov, E. Mitkova, D. Mehandjiev, Catalytic and photocatalytic activity of lightly doped catalysts M:ZnO (M = Cu, Mn), Mater.Chem. Phys., 123, 2010, 563–568. ͦ 10) S. Oh, M. Kang, C. Cho, M. Lee, Detection of carcinogenicamines from dye stuffs or dyed substrates, Dyes Pigments, 33, 1997, 119-135
