Highly Sensitive Hydroquinone Chemical Sensor Based on Cd_(0.5)Mg_(0.4)Ca_(0.1)Fe_2O_4 Nanoparticles

摘要

Herein, we report, for the first time, the fabrication of highly sensitive hydroquinone chemical sensor based on Cd0.5Mg0.4Ca0.1Fe2O4 ferrite nanoparticles. The ferrite nanoparticles were synthesized by facile co-precipitation method and characterized by various analytical methods such as transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TGA) and differential thermal analysis (DTA). The detailed analysis revealed that the prepared ferrite nanoparticles are well crystalline possessing spinal cubic phase and exhibiting Cd0.5Mg0.4Ca0.1Fe2O4 composition. Further, the prepared ferrite nanoparticles were used as efficient electron mediator to fabricate high sensitive hydroquinone chemical sensor which shows a reproducible sensitivity of similar to 104.53 mu AmM-1.cm(-2) with the low experimental detection limit of 3.12 mM. The fabricated sensor shows a linear dynamic range from 3.12 mM to 50 mM. This work revealed that the ferrite nanomaterials can efficiently be used to fabricate high sensitive chemical sensors.