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Fiber-based surface plasmon resonance sensor for lead ion detecion in aqueous solution


Suhailin, Fariza Hanim and Alwahib, Ali Abdulkhaleq and Mustapha Kamil, Yasmin and Abu Bakar, Muhammad Hafiz and Huang, Nay Ming and Mahdi, Mohd Adzir (2020) Fiber-based surface plasmon resonance sensor for lead ion detecion in aqueous solution. Plasmonics, 15. 1369 - 1376. ISSN 1557-1955; ESSN: 1557-1963


Maghemite/reduced graphene oxide nanocomposite has been successfully deposited onto the surface of a gold-coated Dshaped optical fiber. The synergetic combination of gold, graphene, and iron oxide nanoparticles has shown enhancement of the resonance field and sensitivity of the fiber-based plasmonic sensor. Im particular, the sensor exhibited its capability to detect lead ions (Pb2+) in aqueous solution via monitoring the spectral response of the sensor probe to different concentrations of Pb2+. A sensor sensitivity of 1.2 nm per μg/L was attained at the lowest detected Pb2+ concentration, which is 0.001 ppm (limit of detection). This robust, compact, and highly sensitive fiber-based plasmonic sensor will be of a great interest for an in situ and real-time water safety environmental monitoring.

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Additional Metadata

Item Type: Article
Divisions: Faculty of Engineering
DOI Number: https://doi.org/10.1007/s11468-020-01160-4
Publisher: Springer
Keywords: Nanocomposite; Graphene; Surface plasmon resonance sensor; Environmental monitoring
Depositing User: Ms. Nuraida Ibrahim
Date Deposited: 01 Nov 2021 21:49
Last Modified: 01 Nov 2021 21:49
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1007/s11468-020-01160-4
URI: http://psasir.upm.edu.my/id/eprint/89013
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