Investigations on SPR induced Cu@Ag core shell doped SiO2-TiO2-ZrO2 fiber optic sensor for mercury detection
| Autor: | M.S. Sajna, M.S. Sanu, Cyriac Joseph, N.V. Unnikrishnan, A.C. Saritha, V. P. Prakashan, P.R. Biju, Chellappanpillai Sudarsanakumar, Gejo George |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Optical fiber Absorption spectroscopy General Physics and Astronomy chemistry.chemical_element 02 engineering and technology 010402 general chemistry 01 natural sciences law.invention law Surface plasmon resonance business.industry Doping Surfaces and Interfaces General Chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences Surfaces Coatings and Films Mercury (element) chemistry Fiber optic sensor Optoelectronics 0210 nano-technology Selectivity business Science technology and society |
| Zdroj: | Applied Surface Science. 507:144957 |
| ISSN: | 0169-4332 |
| DOI: | 10.1016/j.apsusc.2019.144957 |
| Popis: | An investigation on Surface Plasmon Resonance (SPR) based fiber optic sensor for mercury detection utilizing copper-silver core shell nanoparticles (Cu@Ag CNPs) was carried out. TEM analysis was used to confirm the formation and morphological characteristics of the CNPs, whereas EDS and AAS analysis were used to validate the successful formation of the core shell nanoparticles. Good selectivity and sensitivity towards mercury were established by means of UV–Vis absorption spectroscopy. SPR based fiber optic mercury sensor was fabricated using Cu@Ag CNPs as the sensing materials and the results clearly prove that the Cu@Ag CNPs can act as suitable candidates for the same. |
| Databáze: | OpenAIRE |
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