Title of article :
Preparation and Characterisation of ZnO - SiO2 and Bi2O3 – CuO Nanocomposites
Author/Authors :
Subramaniyan ، Alagappan Department of Physics - Thiagarajar College of Engineering , Visweswaran ، Velajagadessa Department of Mechanical Engineering - Thiagarajar College of Engineering , Kumar ، Chandrasekar Saravana Department of Mechanical Engineering - Thiagarajar College of Engineering , Sornakumar ، Thambu Department of Mechanical Engineering - Thiagarajar College of Engineering
Abstract :
In the present work, ZnO- SiO2 and Bi2O3– CuO nanocomposites have been prepared by sol gel with alternate precursors existing in literature. They are characterised by XRD, SEM,UV, FTIR and photoluminescence spectra .The XRD results indicate a crystallite size of approximately 80 nm for both nanocomposites. SEM image shows a heterogeneous particle size for both samples. The band gap of ZnO SiO2 and Bi2O3– CuO obtained from Taucs plot is 4.1 eV and 2.85 eV, respectively. PL spectra show high intensity absorption for ZnOSiO2 in comparison to Bi2O3–CuO. The composites of Bi2O3–CuO is recommended for efficient optical coating against the coating made from Bi2O3.
Keywords :
Bi2O3–CuO , Nanocomposites , Sol gel , ZnO , SiO2
Journal title :
Nanochemistry Research (NCR)
Journal title :
Nanochemistry Research (NCR)
