Fabrication of ZnO/CNTs for Application in CO₂ Sensor at Room Temperature.

ABSTRACT: Thin films of ZnO and ZnO/carbon nanotubes (CNTs) are prepared and used as CO₂ gas sensors. The spray pyrolysis method was used to prepare both ZnO and ZnO/CNTs films, with CNTs first prepared using the chemical vapor deposition method (CVD). The chemical structure and optical analyses for all the prepared nanomaterials were performed using X-ray diffraction (XRD), Fourier transformer infrared spectroscopy (FTIR), and UV/Vis spectrophotometer devices, respectively. According to the XRD analysis, the crystal sizes of ZnO and ZnO/CNTs were approximately 50.4 and 65.2 nm, respectively. CNTs have average inner and outer diameters of about 3 and 13 nm respectively, according to the transmitted electron microscope (TEM), and a wall thickness of about 5 nm. The detection of CO₂

SUBMITTER: Saad R 

PROVIDER: S-EPMC8624847 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature