Preparation of ZIF-8/PAN composite nanofiber membrane and its application in acetone gas monitoring

Ben Niu; Zhenyu Zhai; Jiaona Wang; Congju Li

doi:10.1088/1361-6528/acc4ca

Preparation of ZIF-8/PAN composite nanofiber membrane and its application in acetone gas monitoring

Nanotechnology. 2023 Mar 31;34(24). doi: 10.1088/1361-6528/acc4ca.

Authors

Ben Niu^{1

2}, Zhenyu Zhai^{1

2}, Jiaona Wang³, Congju Li^{1

2}

Affiliations

¹ School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, People's Republic of China.
² Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, Beijing 100083, People's Republic of China.
³ School of Materials Design and Engineering, Beijing Institute of Fashion Technology, Beijing Key Laboratory of Clothing Materials R and D and Assessment, Beijing 100029, People's Republic of China.

PMID: 36927654
DOI: 10.1088/1361-6528/acc4ca

Abstract

Znic-based metal-organic framework materials (ZIF-8) show great potential and excellent performance in the fields of sensing and catalysis. However, powdered metal-organic framework makes it easy to lose in the process of application. Herein, we use a simple blending electrostatic spinning method to combine ZIF-8 particles with polyacrylonitrile (PAN) nanofibers. ZIF-8/PAN composite nanofiber membrane. The ZIF-8/PAN nanofiber membrane is characterized by scanning electron microscope (SEM), x-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and N₂adsorption-desorption. The results show that the ZIF-8/PAN nanofiber membrane has the characteristic peaks of XRD and FTIR, which are consistent with those of simulated ZIF-8. The specific surface area of ZIF-8/PAN nanofiber membrane increases from 13.5371 to 711.4171 m²g^-1due to the introduction of ZIF-8 particles. The sensor using the nanofiber membrane as the gas sensing layer shows good response and linear correlation to different concentrations of acetone gas. The minimum detection limit of the sensor for acetone is 51.9 ppm. The blank control shows that the response of the sensor to acetone is mainly due to the introduction of ZIF-8 particles. In addition, the sensor also shows a good cyclic response to acetone.

Keywords: capacitance; electrochemistry; gas sensor; metal–organic frameworks; nanofiber.