Abstract
The morphology of a synthetic zeolite (1717-nm particle-size grains; pore width 10–15 nm) as well as its surface area and mesoporosity is described. Morphology investigated by field emission scanning electron microscopy has shown cuboid crystals. The full adsorption–desorption isotherms for N2 gas measured volumetrically at 77 °K have shown type IV isotherm with type H3 hysteresis loops. To study the reliable pore-size distribution, both adsorption and desorption, curves were used by fitting the data to several well-known adsorption models: Brunauer–Emmett–Teller (BET), Barret, Joyner, and Halenda (BJH), Dollimore and Heal (D-H), Horvath–Kawazoe, and the density functional theory (DFT).
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