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A Facile Method to Synthesize b-Oriented Silicalite-1 Thin Film
Author(s)
Date Issued
May 1, 2022
Type
Article
Abstract
Silicalite-1 thin film was prepared with the following batch composition—3TPAOH:25TEOS: 1450H2 O:100EtOH—and synthesized using the hydrothermal technique. Silicalite-1 colloidal crystals were successfully coated on the surface of the silica substrate by the dip-coating method. The investigation of silicalite-1 thin film with organic structure-directing agents (SDA), using a seeding technique with various colloidal seed concentrations, number of dip-coating steps, and crystallization time, were systematically discussed and obtained interesting results. Silicalite-1 powder and Silicalite-1 membrane, the patterns of which showed a unique characteristic crystallography of MFI topology, were characterized by XRD, which indicated the preferred orientation along the b-axis perpendicular to the substrate surface. The morphology and crystal size aspect of Silicalite-1 were also examined by a scanning electron microscope (SEM).
Citation
Membranes, 12(5), 2022