Details

Autor(en) / Beteiligte

• Suhailin, F. H.
• Alwahib, A. A.
• Kamil, Y. Mustapha
• Abu Bakar, M. H.
• Huang, N. M.
• Mahdi, M. A.

Titel

Fiber-based Surface Plasmon Resonance Sensor for Lead Ion Detection in Aqueous Solution

Ist Teil von

• Plasmonics (Norwell, Mass.), 2020-10, Vol.15 (5), p.1369-1376

Ort / Verlag

New York: Springer US

Erscheinungsjahr

2020

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Maghemite/reduced graphene oxide nanocomposite has been successfully deposited onto the surface of a gold-coated D-shaped 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. In particular, the sensor exhibited its capability to detect lead ions (Pb 2+ ) in aqueous solution via monitoring the spectral response of the sensor probe to different concentrations of Pb 2+ . A sensor sensitivity of 1.2 nm per μg/L was attained at the lowest detected Pb 2+ 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.