Two-Dimensional 2D Zeolites

There are many reports and patents demonstrating the best performance of 2D zeolites compared with the standard 3D forms [50]. However, it must be noted that the delamination method is inherently bound to the occurrence of a layered zeolite precursor, and in most cases preparation of the 2D form requires additional, often expensive, steps. However, the particular character of expanded 2D zeolites may offer serious advantages compared to standard forms in some specific applications. 

For instance, delaminated zeolite ITQ-6 (delaminated FER material),when properly modified with aminopropyl groups, showed a higher efficiency for CO2 capture than large-pore mesostructured materials modified with the same amount of amine groups [51]. 

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