期刊
OPTICS COMMUNICATIONS
卷 367, 期 -, 页码 102-107出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.optcom.2016.01.027
关键词
Gold nanoparticles; PVA; Mercury sensor; Fiber optic sensor; Surface Plasmon Resonance
类别
资金
- UGC
Fabrication of Surface Plasmon Resonance (SPR) based fiber optic sensor for mercury detection utilizing gold nanoparticles (AuNPs)-PVA hybrid as sensing material is reported. Films of citrate capped AuNPs in PVA matrix are prepared and their optical properties are studied. UV-vis spectroscopy, Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM) and Particle size analysis (DLS) are performed to ascertain the formation of Au-NPs. Aqueous Hg2+ sensing of citrate capped gold nano particles in PVA matrix are investigated. Further SPR based fiber optic sensor has been fabricated using citrate capped AuNPs-PVA hybrid as sensing material. The detection limit of the proposed sensor is found to be 1 x 10(-6) M. (C) 2016 Elsevier B.V. All rights reserved.
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