Preparation and Characterization of Porous Anodic Alumina membrane


Porous Anodic Alumina (PAA) was prepared by two-step anodization on both sidesof an aluminium foil. The anodization carried out at anodizing temperature 17oC usingoxalic acid as an anodizing electrolyte. The (PAA) template was characterized withoptical microscope and SEM. The optical microscope image showed two (PAA) layersafter the dissolution of the residual aluminium. The average pore diameter was found tobe (75) nm. The average interpore distance of (PAA) prepared was found to be (99) nm.The thickness of (PAA) was found to be (59.5) μm.