Investigations on SPR induced Cu@Ag core shell doped SiO2-TiO2-ZrO2 fiber optic sensor for mercury detection

Document identifier: oai:DiVA.org:ltu-77184
Access full text here:10.1016/j.apsusc.2019.144957
Keyword: Engineering and Technology, Industrial Biotechnology, Bio Materials, Teknik och teknologier, Industriell bioteknik, Biomaterial, Mercury sensor, CNPs, SPR, Ternary matrix, Trä och bionanokompositer, Wood and Bionanocomposites
Publication year: 2020
Relevant Sustainable Development Goals (SDGs):
SDG 9 Industry, innovation and infrastructureSDG 3 Good health and wellbeing
The SDG label(s) above have been assigned by OSDG.ai

Abstract:

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.

Authors

V.P. Prakashan

School of Pure & Applied Physics, Mahatma Gandhi University, India
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Gejo George

Luleå tekniska universitet; Materialvetenskap; School of Pure & Applied Physics, Mahatma Gandhi University, Kottayam, India
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M.S. Sanu

School of Pure & Applied Physics, Mahatma Gandhi University, Kottayam, India
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M.S. Sajna

School of Pure & Applied Physics, Mahatma Gandhi University, Kottayam, India. Department of Optoelectronics, University of Kerala, Thiruvananthapuram, Kerala, India
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A.C. Saritha

School of Pure & Applied Physics, Mahatma Gandhi University, Kottayam, India
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C. Sudarsanakumar

School of Pure & Applied Physics, Mahatma Gandhi University, Kottayam, India
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P.R. Biju

School of Pure & Applied Physics, Mahatma Gandhi University, Kottayam, India
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Cyriac Joseph

School of Pure & Applied Physics, Mahatma Gandhi University, Kottayam, India
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N.V. Unnikrishnan

School of Pure & Applied Physics, Mahatma Gandhi University, Kottayam, India
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