Abstract
Thin films of MAPO-39, a small pore (4 Å) magnesium aluminophosphate molecular sieve (ATN topology), have been prepared via pulsed laser deposition (PLD) for the first time. Laser ablation of MAPO-39 onto porous metal substrates followed by a post-hydrothermal treatment of the PLD film results in oriented crystalline MAPO-39 membranes. The MAPO-39 crystals grow with pores oriented primarily normal to the porous metal substrate. Decomposition of the template provides access to the membrane pores. Preliminary results for the separation of water/alcohol mixtures using the MAPO-39 oriented membrane are described. Selective permeation of water was observed in all the cases.
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