Fig. 1

SEM images showing the morphology and surface characteristics of the nanocomposite films. (a) and (b) depict the overall structure and distribution of ZIF-8 nanoparticles within the polymer matrix, revealing a crystalline and layered morphology at magnifications of 20,000x and 10,000x, respectively. (c) illustrates a higher magnification (50,000x) view of the film, highlighting the dispersed nanoparticle clusters and their integration with the polymer matrix. (d) provides an even closer look at the surface morphology at 20,000x, displaying a more uniform dispersion of ZIF-8 particles. (e) focuses on the detailed morphology of individual ZIF-8 nanoparticles, showing their almost spherical shape and tendency to form agglomerates, with an average size around 80 nm at a magnification of 200,000x