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Citation: Chun-Shui WANG, Yu-Ying BAI, Xing-Xing LIU, Jia-Hao LI, Xiang-Feng CHU, Shi-Ming LIANG. Preparation and gas-sensing properties of WS2/CuGa2O4 composite materials[J]. Chinese Journal of Inorganic Chemistry, ;2023, 39(8): 1519-1526. doi: 10.11862/CJIC.2023.094 shu

Preparation and gas-sensing properties of WS2/CuGa2O4 composite materials

  • 1.

    School of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan, Anhui 243032, China

  • 2.

    School of Materials Science and Engineering, Linyi University, Linyi, Shandong 276000, China

Figures(10)

  • CuGa2O4 nanomaterials were synthesized by the co-precipitation method, and a series of WS2/CuGa2O4 composite materials were prepared by the hydrothermal method. The crystal phase, morphology, and chemical state of the as-prepared materials were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and so on. The effect of the doped amount of WS2 on the gas-sensing sensitivity of CuGa2O4 materials to ethanol gas was studied. The results showed that when the mass ratio of WS2 to CuGa2O4 was 1%, the response of this gas sensor to 100 μL·L-1 ethanol gas at room temperature was 345.3, and the response and recovery times were 184 and 69 s, the detection limit reached 0.1 μL·L-1.
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