Biofunctionalized magnetic nanoparticles incorporated MoS nanocomposite for enhanced n-butanol sensing at room temperature.

N-butanol is well known to be a flammable and harmful liquid that is a potential threat to human health and property. Therefore, it is important to monitor the concentration of n-butanol in the surroundings. The need for highly efficient toxic gas detection is urgent and has been driving the research on gas sensors for practical applications. Molybdenum disulfide (MoS) has been attracting significant interest for gas detection at room temperature. Herein, we report biofunctionalized magnetic nanoparticles incorporated MoS for sensing n-butanol. The biosynthesized magnetite nanoparticles (CT-FeO) were synthesized by the addition of Cinnamomum Tamala (CT) leaf extract, and subsequently, the nanocomposite was synthesized using a hydrothermal method. Highly sensitive sensors based on MoS-CT-FeO were fabricated and tested for sensing different concentrations of n-butanol. The nanocomposites showed a good sensing performance ( R/R %) of 72% towards 20 ppm of n-butanol, indicating the potential use of MoS-CT-FeO nanocomposite for sensing n-butanol at room temperature.