Electric Elegance: Enhancing Cotton Fabric with Conducting Polypyrrole for Gas Sensing Applications
DOI:
https://doi.org/10.12723/mjs.67.4Keywords:
Gas Sensor, Conducting Polymer, NO2 gas, Polypyrrole, TLVAbstract
This work is carried out to study the indigenously developed conducting polymer-based gas sensor for NO2 detection. The gas sensor is fabricated using conducting polymer such as Polypyrrole (PPy) as the active layer on the cotton fabric surface. The effects of washing on the composition and structure of samples were investigated through the application of XRD and FTIR spectroscopy. XRD analysis revealed notable changes in crystal structure. FTIR analysis provided insights into the molecular bonds present, highlighting variations in the functional groups before and after washing. We evaluated the electrical conductivities of samples before and after washing. The key findings shed light on the effects of washing on the chemical structure of gas-sensing materials, which is critical for maintaining sensor performance. This paper discusses the gas sensing mechanism and configuration of the sensor with a threshold limit value (TLV) of 25 ppm, enabling detection at low ppm concentrations.
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