The SBA-l5 material can be applied on many industries such as catalyst, adsorbent and membrane
material. Pore size in SBA-I5 can be categorized in mesoporous material, because the size ranges from 2-
50 nm. Pore diameter generally can be observed by Scanning Electron Microscope (SEM) or
Transmission Electron Microscope (TEM). Another method to determine the pore diameter is using a
Atomic Force Microscope (AFA/D. The topography observation from AFM can identify the size and pore
shape of SBA-I 5 in nanometer order: The result of AFM showed that the pore size ofSBA-i5 is 3.27 nm.
