Abstract
Herein, the synthesis of mimosa pudica leaves shaped alpha-iron oxide (alpha-Fe2O3) nanostructures is reported through simple and facile hydrothermal process. The prepared alpha-Fe2O3 nanostructures were characterized in terms of their morphological, structural, compositional and optical properties through a variety of characterization techniques such as FESEM, EDS, XRD, FTIR and Raman spectroscopy. The detailed characterizations revealed the well-crystallinity and dense growth of mimosa pudica leaf shaped alpha-Fe2O3 nanostructures. Further, the prepared nanomaterials were used as efficient electron mediator to fabricate sensitive ethanol chemical sensor. The fabricated sensor exhibited a high sensitivity of similar to 30.37 mu AmM(-1)cm(-2) and low detection limit of similar to 0.62 mu M. The observed linear dynamic range (LDR) was in the range from 10 mu M-0.625 mu M.