Zeolite fiber, film, and monolith were prepared by using nanosize tita
nium silicalite (TS-I) crystals. Films and fibers of TS-I zeolite were
optically transparent, which might be important for advanced optozeol
itic materials. A permeation result of gases on monolith indicates tha
t the gas permeation is governed by the Knudsen mechanism. All types o
f Ts-1 zeolites manufactured in this work are observed to be MI;I stru
cture with an orthorhombic symmetry. These results suggest that nanosi
ze zeolites have potential to allow morphological design with applicat
ions for advanced functional materials.