Preparation of Zeolite UTD-1 Films by Pulsed Laser Ablation: Evidence for Oriented Crystal Growth

Abstract

Oriented films of the high-silica zeolite UTD-1 were prepared using pulsed laser ablation (248 nm, KrF*) of as-synthesized UTD-1 onto polished silicon wafers followed by hydrothermal treatment in a UTD-1 synthesis gel. Densely packed aggregates of elongated UTD-1 crystals grow from the ablated surface with the zeolite channels oriented perpendicular to the substrate.