Rapid Gas-Sensing Detection of Carbon Disulfide by a CdS/SnS Nanocomposite-Based Cataluminescence Sensor

A CdS/SnS nanocomposite was prepared using a simple hydrothermal method and used as sensitive material for the detection of carbon disulfide (CS2) based on cataluminescence (CTL). The samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive spectrometry (EDS) photoelectron spectroscopy (XPS). results show that sensor has high sensitivity to CS2 at relatively low operating temperature (162 °C); response time is about 3 s, recovery 16 s. modification CdS effectively enhances SnS sensors. CTL intensity shows good linear relationship gas concentrations ranging from 6.75 168.75 ppm (R2 = 09974), limit (LOD) reached 0.96 ppm. In addition, excellent selectivity stability towards CS2. mechanism discussed in detail. This research great potential