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

Bai Sun; Guoji Shi; Zhuo Tang; Pengyu Zhang; Yuxian Guo; Shuguang Zhu; Jinyun Liu

doi:10.3390/chemosensors11010010

Chemosensors (Dec 2022)

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

Bai Sun,
Guoji Shi,
Zhuo Tang,
Pengyu Zhang,
Yuxian Guo,
Shuguang Zhu,
Jinyun Liu

Affiliations

Bai Sun: Research Center of Engineering and Technology for Smart City of Anhui Province, College of Environment and Energy Engineering, Anhui Jianzhu University, Hefei 230601, China
Guoji Shi: Research Center of Engineering and Technology for Smart City of Anhui Province, College of Environment and Energy Engineering, Anhui Jianzhu University, Hefei 230601, China
Zhuo Tang: Research Center of Engineering and Technology for Smart City of Anhui Province, College of Environment and Energy Engineering, Anhui Jianzhu University, Hefei 230601, China
Pengyu Zhang: Research Center of Engineering and Technology for Smart City of Anhui Province, College of Environment and Energy Engineering, Anhui Jianzhu University, Hefei 230601, China
Yuxian Guo: College of Mathematics and Physics, Anhui Jianzhu University, Hefei 230601, China
Shuguang Zhu: Research Center of Engineering and Technology for Smart City of Anhui Province, College of Environment and Energy Engineering, Anhui Jianzhu University, Hefei 230601, China
Jinyun Liu: Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China

DOI: https://doi.org/10.3390/chemosensors11010010
Journal volume & issue: Vol. 11, no. 1
p. 10

Abstract

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

Published in Chemosensors

ISSN: 2227-9040 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Chemistry: Organic chemistry: Biochemistry
Website: http://www.mdpi.com/journal/chemosensors

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