Optical fibre tip sensor coated with chitosan for lead ion detection

In this work, we demonstrate an optical fibre tip sensor coated with chitosan for lead ion (Pb2+) detection. The sensor was fabricated using a tip of standard single mode optical fibre. The fibre tip region was cleaved and dipped into chitosan solution to form a sensitive layer. The coated sensor wa...

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Main Authors: Razali, Nazirah Mohd, Zaidi, Nurul Farah Adilla, Ja’afar, Puteri Nadiah Syamimi Said, Hamzah, Azura, Ahmad, Fauzan, Ambran, Sumiaty
Format: Conference Proceeding
Language:English
Subjects:
Chitosan
Coating
Environmental monitoring
Ion detectors
Linearity
Sensors
Wastewater
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creator Razali, Nazirah Mohd
Zaidi, Nurul Farah Adilla
Ja’afar, Puteri Nadiah Syamimi Said
Hamzah, Azura
Ahmad, Fauzan
Ambran, Sumiaty
description In this work, we demonstrate an optical fibre tip sensor coated with chitosan for lead ion (Pb2+) detection. The sensor was fabricated using a tip of standard single mode optical fibre. The fibre tip region was cleaved and dipped into chitosan solution to form a sensitive layer. The coated sensor was exposed to different Pb2+ concentration ranging from 0 to 70 ppm. In order to compare the sensor’s performance, the uncoated optical fibre tip sensor was firstly used to perform the measurement. The chitosan-coated tip sensor has greatly enhanced the sensor’s sensitivity 7 times higher compared to uncoated the sensor with high linearity up to 97%. As the proposed sensor shows a promising potential in detecting Pb2+, we believe the application of the sensor can be extended for environmental and wastewater monitoring.
doi_str_mv 10.1063/1.5142127
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source American Institute of Physics:Jisc Collections:Transitional Journals Agreement 2021-23 (Reading list)
subjects Chitosan
Coating
Environmental monitoring
Ion detectors
Linearity
Sensors
Wastewater
title Optical fibre tip sensor coated with chitosan for lead ion detection
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