Indian Journal of Science and Technology
Year: 2020, Volume: 13, Issue: 30, Pages: 3088-3092
M Behera1*, S Ram2
1Silicon Institute of Technology, Bhubaneswar, Odisha, India
2Ex-professor, Materials Science Centre, IIT Kharagpur, India
Email: [email protected]
Received Date:12 May 2020, Accepted Date:03 August 2020, Published Date:19 August 2020
Objectives: To synthesize gold (Au) doped fullerene (C60)-Poly (vinyl pyrrolidone)PVP nanofluids in an alcoholic medium. Methods: A simple chemical reduction method was adopted to synthesize Au nanoparticles and then these NPs were doped into the C60-PVP NFs by ultra-sonication. The samples were characterized using spectrophotometer, rheometer and microscope. Findings:We reported Surface Plasmon Resonance enhanced p !p C60(sp2)electron transition in PVP molecules upon insertion of NG into C60 NFs with PVP in butanol. Electron transfer PVP!Au(NG) causes a drastic decrease in the light emission in PVP moieties in a Au:C60-PVP complex. A noticeable red shift of the C=O stretching band of PVP reveals surface interaction between “>C=O and Au-atom. Rheological study of NFs reveals non-Newtonian behavior with an enhanced yield stress and follows a typical Bingham type flow characteristics.High resolution transmission electron micrograph shows formation of Au-C60 metal-non metal NPs of hexagonal shape. Novelty: Decrease in light emission intensity of PVP molecules in presence of Au NPs hints that it could be a candidate for sensing applications.
Keywords: Nanogold; nanofluids; surface plasmon resonance; light emission; rheological properties
© 2020 Behera & Ram.This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Published By Indian Society for Education and Environment (iSee).
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