Abstract
AbstractThe nanocomposites of g‐C3N4 nanosheet decorated magnesium ferrite nanoparticles were synthesized by a facile solvothermal method. X‐ray diffraction (XRD), field‐emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM) and thermal gravimetric analysis and differential scanning calorimeter (TG‐DSC) techniques were used to characterize the structure and morphology of the as‐prepared nanocomposites. The results indicated that the MgFe2O4 nanoparticles were highly dispersed on the surface of the g‐C3N4 nanosheet. The gas‐sensing properties of the samples were tested, and the response value (Ra/Rg) of the MgFe2O4/g‐C3N4 nanocomposite with 15 wt.% g‐C3N4 content‐based sensor to 500 ppm of ethanol was 112 at 300 °C, which is 5 times higher than that of pure MgFe2O4. Moreover, the MgFe2O4/g‐C3N4‐15‐based sensor showed impressive selectivity, fast response and recovery characteristics, and good linearity in range of ethanol concentration (10–500 ppm).
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