Study on sensing properties of chitosan-polyethylene oxide-exfoliated graphite based toluene sensors

Chitosan was used as a material to fabricate film sensor because of its structure and properties where it consists of amino group which has free electron. In this study, chitosan was added with polyethylene oxide and exfoliated graphite to study the electrical properties toward wet air, dry air and...

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Format:	Thesis
Language:	English
Subjects:	Chitosan Chitin Polyethylene oxide Graphite Detectors
Online Access:	http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77871/1/Page%201-24.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77871/2/Full%20text.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77871/4/Aisha%20Elhadi.pdf
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spelling	my-unimap-778712023-02-16T12:48:48Z Study on sensing properties of chitosan-polyethylene oxide-exfoliated graphite based toluene sensors Irwana Nainggolan, Dr. Chitosan was used as a material to fabricate film sensor because of its structure and properties where it consists of amino group which has free electron. In this study, chitosan was added with polyethylene oxide and exfoliated graphite to study the electrical properties toward wet air, dry air and toluene. Chitosan powder was dissolved in 2.00 v/v% of acetic acid to form chitosan solution. Then, the chitosan solution was added with polyethylene oxide and exfoliated graphite based on the ratio needed. The composition of the materials was varied and fabricated on gold plated printed circuit board by using electrical deposition technique. Chitosan/polyethylene oxide/exfoliated graphite matrix films were prepared to observe the effect of exfoliated graphite concentration on microstructure, electrical conductivity, and sensing properties of the films. The chitosan/polyethylene oxide/exfoliated graphite film was prepared with various concentration of exfoliated graphite to obtain the best concentration of exfoliated graphite to achieve the excellent properties of the films. The SEM technique was employed to analyse the micro- structure of the prepared chitosan/ polyethylene oxide / exfoliated graphite. The FT-IR was used to analyse the functional groups existence in the chitosan/polyethylene oxide/exfoliated graphite films. From the result obtained, this project successfully proved that the addition 0.4w/v % of exfoliated graphite onto chitosan/polyethylene oxide film has improved the sensing properties of the films. The chitosan/polyethylene oxide/exfoliated graphite films have better response, sensitivity and stability compare to chitosan/polyethylene oxide films. Universiti Malaysia Perlis (UniMAP) Thesis en http://dspace.unimap.edu.my:80/xmlui/handle/123456789/77871 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77871/3/license.txt 8a4605be74aa9ea9d79846c1fba20a33 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77871/1/Page%201-24.pdf 2989fd28db9ce28bad85e96863bf70b1 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77871/2/Full%20text.pdf efe31e5421eb21f89a83c12d89c691d8 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77871/4/Aisha%20Elhadi.pdf b406f2c3dbcb0954155d24567b0ed4b2 Universiti Malaysia Perlis (UniMAP) Chitosan Chitin Polyethylene oxide Graphite Detectors School of Materials Engineering
institution	Universiti Malaysia Perlis
collection	UniMAP Institutional Repository
language	English
advisor	Irwana Nainggolan, Dr.
topic	Chitosan Chitin Polyethylene oxide Graphite Detectors
spellingShingle	Chitosan Chitin Polyethylene oxide Graphite Detectors Study on sensing properties of chitosan-polyethylene oxide-exfoliated graphite based toluene sensors
description	Chitosan was used as a material to fabricate film sensor because of its structure and properties where it consists of amino group which has free electron. In this study, chitosan was added with polyethylene oxide and exfoliated graphite to study the electrical properties toward wet air, dry air and toluene. Chitosan powder was dissolved in 2.00 v/v% of acetic acid to form chitosan solution. Then, the chitosan solution was added with polyethylene oxide and exfoliated graphite based on the ratio needed. The composition of the materials was varied and fabricated on gold plated printed circuit board by using electrical deposition technique. Chitosan/polyethylene oxide/exfoliated graphite matrix films were prepared to observe the effect of exfoliated graphite concentration on microstructure, electrical conductivity, and sensing properties of the films. The chitosan/polyethylene oxide/exfoliated graphite film was prepared with various concentration of exfoliated graphite to obtain the best concentration of exfoliated graphite to achieve the excellent properties of the films. The SEM technique was employed to analyse the micro- structure of the prepared chitosan/ polyethylene oxide / exfoliated graphite. The FT-IR was used to analyse the functional groups existence in the chitosan/polyethylene oxide/exfoliated graphite films. From the result obtained, this project successfully proved that the addition 0.4w/v % of exfoliated graphite onto chitosan/polyethylene oxide film has improved the sensing properties of the films. The chitosan/polyethylene oxide/exfoliated graphite films have better response, sensitivity and stability compare to chitosan/polyethylene oxide films.
format	Thesis
title	Study on sensing properties of chitosan-polyethylene oxide-exfoliated graphite based toluene sensors
title_short	Study on sensing properties of chitosan-polyethylene oxide-exfoliated graphite based toluene sensors
title_full	Study on sensing properties of chitosan-polyethylene oxide-exfoliated graphite based toluene sensors
title_fullStr	Study on sensing properties of chitosan-polyethylene oxide-exfoliated graphite based toluene sensors
title_full_unstemmed	Study on sensing properties of chitosan-polyethylene oxide-exfoliated graphite based toluene sensors
title_sort	study on sensing properties of chitosan-polyethylene oxide-exfoliated graphite based toluene sensors
granting_institution	Universiti Malaysia Perlis (UniMAP)
granting_department	School of Materials Engineering
url	http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77871/1/Page%201-24.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77871/2/Full%20text.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77871/4/Aisha%20Elhadi.pdf
_version_	1776104237040664576

Study on sensing properties of chitosan-polyethylene oxide-exfoliated graphite based toluene sensors

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