High Sensitive Electrochemical Nitrite Sensor Using Fe2o3/Mos2 Nanocomposites Synthesized By Facile Method

An amperometric nitrite sensor is fabricated using Fe2O3/MoS2 (FM) nanocomposites synthesized by solution mixing process. Structural properties of the nanocomposite are studied by XRD analysis. Morphological studies by HRTEM analysis reveal the formation of nanocomposite comprising Fe2O3 nanoplates on MoS2 nanosheets. The composition of the nanocomposite has been studied by EDX analysis. The fabricated amperometric sensor can be used for a wide range of sensing from 10 mu M-10mM with a lower limit of detection (LOD) of 0.2 mu M. The high sensitivity (310 mu AmM-1 cm(-2)), high stability and low interference of FM nanocomposites demonstrate that the prepared composite is a promising material for nitrite sensing in drinking water.