Effect of functional groups in the pani-cellulose derivatives-based sensor in hydrazine detection

Hussin, Hazira and Gan, Seng-Neon and Phang, Sook-Wai (2022) Effect of functional groups in the pani-cellulose derivatives-based sensor in hydrazine detection. Polymer Bulletin, 79 (3). pp. 1843-1856. ISSN 0170-0839, DOI https://doi.org/10.1007/s00289-021-03589-x.

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Polyaniline (PAni) has been used widely in sensor applications. However, it has the disadvantage of being insoluble in water. To overcome this limitation, aniline (Ani) monomer was polymerized in the presence of water-soluble cellulose to produce a complex. In this research work, water-soluble PAni-cellulose derivatives were prepared and developed as a chemical sensor for detecting hydrazine in aqueous effluents. Three cellulose derivatives methylcellulose (MC), hydroxypropyl cellulose (HPC), and hydroxypropyl methylcellulose (HPMC) were incorporated during the polymerization of Ani through chemical oxidation method to produce PAni-MC, PAni-HPC, and PAni-HPMC derivative, respectively. The electrical conductivities of these PAni-cellulose derivatives were affected by the presence of hydrazine at different ppm levels. These offer the potential of application as a chemical sensor for hydrazine in the commercial wastewater. The sensor responses of PAni-cellulose derivatives toward hydrazine were observed through the electrical conductivity values. Results have shown that PAni-MC could attain the highest sensitivity of 0.0143 ppm(-1), followed by PAni-HPC that has acquired sensitivity of 0.0052 ppm(-1). Meanwhile, PAni-HPMC has recorded the lowest sensitivity of 0.0045 ppm(-1).

Item Type: Article
Funders: University of Malaya [PG198-2016A], Tunku Abdul Rahman University College, Ministry of Education, Malaysia
Uncontrolled Keywords: Polyaniline; Methylcellulose; Hydroxypropyl cellulose; Hydroxypropyl methylcellulose; Hydrazine; Sensor
Subjects: Q Science > QD Chemistry
Divisions: Faculty of Science > Department of Chemistry
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 25 Apr 2022 02:44
Last Modified: 25 Apr 2022 02:44
URI: http://eprints.um.edu.my/id/eprint/33840

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