School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, People's Republic of China.
Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, Beijing 100083, People's Republic of China.
Nanotechnology. 2023 Mar 31;34(24). doi: 10.1088/1361-6528/acc4ca.
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 Nadsorption-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 mgdue 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.
基于锌的金属有机骨架材料（ZIF-8）在传感和催化领域显示出巨大的潜力和优异的性能。然而，粉末状的金属有机骨架在应用过程中容易丢失。在此，我们使用简单的共混静电纺丝法将 ZIF-8 颗粒与聚丙烯腈（PAN）纳米纤维结合。ZIF-8/PAN 复合纳米纤维膜。ZIF-8/PAN 纳米纤维膜的特性通过扫描电子显微镜（SEM）、X 射线衍射（XRD）、傅里叶变换红外光谱（FTIR）和 N2 吸附-解吸进行表征。结果表明，ZIF-8/PAN 纳米纤维膜具有 XRD 和 FTIR 的特征峰，与模拟 ZIF-8 的特征峰一致。由于 ZIF-8 颗粒的引入，ZIF-8/PAN 纳米纤维膜的比表面积从 13.5371 增加到 711.4171mg。用作气体传感层的纳米纤维膜的传感器对不同浓度的丙酮气体表现出良好的响应和线性相关性。传感器对丙酮的最小检测限为 51.9ppm。空白对照表明，传感器对丙酮的响应主要是由于 ZIF-8 颗粒的引入。此外，该传感器对丙酮还表现出良好的循环响应。
