Highly Stable Liquefied Petroleum Gas Detection of Mn0.2Co0.8Fe2O4 Incorporated in Polyvinyl Alcohol based Nanohybrid

Nanohybrids have potential to cover all the requirements of developing technological trends while being ecologically friendly. This article describes a two-step synthesis method to create a hybrid system using Mn-Co nanoferrite and polyvinyl alcohol (PVA). The Mn-Co nanoferrite was prepared by the chemical method and calcined at 600 °C. Structural and morphological analysis indicates the formation of spinel cubic single-phase and nanoferrites intercalated in the PVA matrix by X-ray Diffraction (XRD) and Field-Emission Scanning Electron Microscopy (FESEM) respectively. The optical bandgap was found to be 4.14 eV by UV-Visible spectroscopy, and the Fourier Transfrom Infrared Spectrsocopy (FTIR) exhibits presence of all organic functional groups suggests the formation of nanohybrids. As-prepared nanoferrites incorporated in a PVA matrix are used to fabricate the device by solution-processed method for Liquefied Petroleum Gas (LPG) Detection. The adsorption and desorption of the gas on the surface of the film determine the sensing performance of the nanohybrid based device. The sensor response of the device was discovered to be 41%, and rise/decay time of one cycle was discovered to be 7.1/6.9 s at 0.5 vol % of LPG exposure. The prepared sample exhibits excellent qualities at significant lower concentration of the targeted gas and demonstrated the highly stable nature.