Abstract
Adsorption of p-nitroaniline (p-NA) into silicalite-1 (S-1) micropore was examined by XRD, TG-DTA, UV-Vis and IR measurements. Silicalite-1 single crystal adsorbed with p-NA was prepared by heat-treating a mixture of S-1 and p-NA in vacuo. It was found that p-NA molecules adsorbed more preferentially into the pore channel of S-1 than the outer surface of particles. The amounts of p-NA molecules were adsorbed into the pore channel of S-1 strongly suggest that p-NA were adsorbed only at the intersection of the straight channel and zigzag channel of S-1.
