Study on the Calcination of Titanium Silicalite Zeolite (<i>TS-1</i>)

Abstract

The calcination process of titanium silicalite zeolite TS-1, which was prepared by hydrothermal method, was investigated using TG-DTA, XRD, FT-IR and SEM. With TG-DTA analysis, it has been observed that the crystal form was not changed after calcination under 1073K and the amount of template removal from zeolite channels was not affected by heating rate. The photographs of SEM showed that calcined TS-1 crystal morphology was integrated under 823K, but ruptured at 923K. Analyzing FT-IR with XRD results, the calcination process changed the cell parameter and unit cell volume, and increased the crystallinity of zeolite TS-1.