Authors: Chamarthi K Srikanth P Jeevanandam
Publish Date: 2012/12/14
Volume: 35, Issue: 6, Pages: 939-946
Abstract
Gold nanoparticles have been deposited on synthetic calcite substrate by galvanic displacement reaction and electroless deposition methods A comparative study has shown that electroless deposition is superior compared to galvanic displacement reaction for uniform deposition of gold nanoparticles on calcite Characterization of the samples prepared by two different deposition methods was carried out by Xray diffraction transmission electron microscopy field emission scanning electron microscopy FE–SEM and diffuse reflectance spectroscopy DRS measurements FE–SEM studies prove that smaller nanoparticles of gold are deposited uniformly on calcite if electroless deposition method was employed and DRS measurements show the characteristic surface plasmon resonance of gold nanoparticlesThe generous funding from the Department of Science and Technology Government of India Project No SR/S1/PC06/2007 is acknowledged with gratitude Thanks are also due to the Institute Instrumentation Centre IIT Roorkee for providing XRD TEM and FE–SEM facilities We want to thank the anonymous reviewer for his valuable comments
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