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Application of Polypyrrole/Lead Sulphide Nanocomposite in UV Light Assisted Photocatalysis and Gas Sensing

Manoharmayum Vishwanath Sharma, Harendra Kumar Sharma


The synthesis of ppy/lead sulphide nanocomposite was done using the co-precipitation method. The synthesized ppy/leadsulphide nanocomposite was characterized using Transmission Electron Microscopy (TEM), Selected Area Electron Diffraction (SAED), X-Ray Powder Defraction (XRD), Fourier Transformation Infra-Red Spectroscopy (FTIR), UV-Vis Spectroscopy techniques. The optical bandgap of the synthesized ppy/lead sulphide nanocomposite was observed to be 3.48 eV. The synthesized material is crystalline, with an average crystallite size of 2.51 nm. The photocatalytic and ammonia gas sensing potential of the synthesized lead sulphide nanocomposite was explored. The study indicated that the synthesized nanocomposite was able to degradation methyl orange up to 80.31% and had a sensing response of 49% at 10 ppm concentration of ammonia gas. The study indicated that the synthesized ppy/lead sulphide nanocomposites can be used as a dual functional material for environmental applications.


Gas Sensing, Metal Sulphide, Nanocomposite, Photocatalysis, Pollution, Polymer

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