Electrospray deposition offers a uniform distribution of minute droplets containing ZIFs precursors generated via an electrostatic force applied on a capillary. This method forms fine-charged precursor droplets that travel through a thermal gradient zone due to an electrical potential gradient. The droplets land and spread on the substrate surface before evaporation-induced nucleation and crystallization of ZIFs crystals to form continuous membranes. This method offers a significant reduction in the synthesis time and precursor consumption. It can be used for easy control of the membrane's thickness. It also simplifies the activation process of the membrane for gas adsorption. The rate of evaporation is a crucial feature during membrane fabrication. It is essential to obtain continuous pore channels in ZIF membranes. The temperature of evaporation for the hot plate should be optimized based on the solvent's boiling point (bp.). At high temperatures, most of the solvent in the electrospray droplets was dried quickly before the successive droplets reached the substrate surface. Thus, the deposited droplet will form single crystals rather than creating a continuous layer of ZIFs materials. On the other hand, low evaporation temperature makes the precursor solution wet the substrate surface. The droplet smears into the interior of the substrate without considerable formation of ZIF crystal.