Abstract
Abstract Hydrothermal transformation of porous glass beads into porous glass beads containing zeolite Beta (BEA) is achieved, at 160 °C, using tetraethylammonium hydroxide (TEAOH) as the templating agent. The products were characterised by various techniques. The XRD results indicate that the transformation of porous glass beads into phase-pure zeolite Beta occurs within the SiO 2 /Al 2 O 3 ratios of 50–100. The Light microscopic images indicate that the shape of the starting porous glass beads is preserved during the hydrothermal treatment. SEM reveals that the outer surface of the porous glass beads is completely covered by zeolite Beta crystals. N 2 adsorption isotherm reveals the microporous nature of the zeolite Beta sample obtained from porous glass beads.
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