Ammonia detection in water using balloon-like fiber optic sensor coated with oxazine and PDMS

Abd Rashid, Nurfatihah Che and Cholan, Noran Azizan and Tay, Kim Gaik and Mat Daud, Azra Munirah and Jaharudin, Nurul Atika Nabila and Sulaiman, Nazrah Ilyana and Ngajikin, Nor Hafizah (2024) Ammonia detection in water using balloon-like fiber optic sensor coated with oxazine and PDMS. Optik, 301. pp. 1-11.

Text J17690_a2249f5f04e00d6da720f1b63bca34b6.pdf Restricted to Registered users only Download (3MB) | Request a copy

Abstract

This paper presents the detection of ammonia in water using a balloon-like fiber optic sensor coated with Oxazine 170 perchlorate and polydimethylsiloxane (PDMS). The sensor was prepared by removing a middle portion of a plastic optical fiber cladding using acetone. The uncladded fiber optic sensor was then bent into a balloon-like shape using a 3D printed fiber holder to fix the diameter of the bent structure and a shrink tube to maintain the curvature of the balloon-like structure. A thin layer of Oxazine 170 perchlorate (sensing material) was then deposited on the fiber surface before it was dip coated with PDMS for the protection of the sensing material. Experimental results revealed that the sensor has linear relationship with ammonia concentration ranging from 0 mg/L to 15 mg/L. Moreover, the sensor managed to achieve the sensor sensitivity of 0.006 (mg/L)− 1 , linearity of 0.9154, resolution of 1.6667 mg/L, LOD of 2.9556 mg/L, average stability precision of 99.8 % and RSD of 0.0308 %.

Item Type:	Article
Uncontrolled Keywords:	Ammonia detection Balloon-like structure Fiber optic sensor Oxazine 170 perchlorate
Subjects:	Q Science > QD Chemistry
Divisions:	Faculty of Electrical and Electronic Engineering > FKEE
Depositing User:	Mr. Mohamad Zulkhibri Rahmad
Date Deposited:	01 Dec 2024 04:18
Last Modified:	01 Dec 2024 04:19
URI:	http://eprints.uthm.edu.my/id/eprint/12130

Actions (login required)

View Item