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Reduced graphene oxide/maghemite nanocomposite for detection of lead ions in water using surface plasmon resonance


Citation

Alwahib, Ali Abdulkhaleq Abdulhadi and Mustapha Kamil, Yasmin and Abu Bakar, Muhammad Hafiz and Muhammad Noor, Ahmad Shukri and Yaacob, Mohd Hanif and Lim, Hong Ngee and Huang, Nay Ming and Mahdi, Mohd Adzir (2018) Reduced graphene oxide/maghemite nanocomposite for detection of lead ions in water using surface plasmon resonance. IEEE Photonics Journal, 10 (6). art. no. 4801310. pp. 1-11. ISSN 1943-0655; ESSN: 1943-0655

Abstract

A prism-based surface plasmon resonance (SPR) sensor deposited with reduced graphene oxide/maghemite is presented for the detection of lead ions (Pb 2+ ) in water. The SPR setup proposed followed the Kretschmann configuration with the installment of the nanocomposite integrated bilayer sensor chip onto the prism. For protection, the nanocomposite active layer was coated with 1-ethyl-3-(3-dimethylaminopropyl)-carbodiimidehydrochloride/N-hydroxysuccinimide. When the sensor was tested with different concentrations of Pb 2+ in static water, the limit of detection was achieved at 0.001 ppm with a resonance angle shift of 0.184°. As an improvisation, a sample circulation design was adapted into the setup in order to increase the interaction rate between the sample and the sensing layer. This managed to improve the detection limit to 0.3 ppb.


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Official URL or Download Paper: https://ieeexplore.ieee.org/document/8501547

Additional Metadata

Item Type: Article
Divisions: Faculty of Engineering
Faculty of Science
DOI Number: https://doi.org/10.1109/JPHOT.2018.2877190
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Keywords: Optical sensing and sensors; Surface plasmon; Graphene
Depositing User: Ms. Nida Hidayati Ghazali
Date Deposited: 07 May 2020 23:07
Last Modified: 07 May 2020 23:07
Altmetrics: https://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1109/JPHOT.2018.2877190
URI: http://psasir.upm.edu.my/id/eprint/73728
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