Effect of functional groups in the pani-cellulose derivatives-based sensor in hydrazine detection
Document Type
Article
Publication Date
3-1-2022
Abstract
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).
Keywords
Polyaniline, Methylcellulose, Hydroxypropyl cellulose, Hydroxypropyl methylcellulose, Hydrazine, Sensor
Divisions
CHEMISTRY
Funders
University of Malaya [PG198-2016A],Tunku Abdul Rahman University College,Ministry of Education, Malaysia
Publication Title
Polymer Bulletin
Volume
79
Issue
3
Publisher
Springer
Publisher Location
ONE NEW YORK PLAZA, SUITE 4600, NEW YORK, NY, UNITED STATES