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ABSTRACT (con't) : The first objective of the research was to prove that the physical and chemical differences between the ACs have a significant effect on the outcome of the AC-titania composite. Further, an elucidation of the traits governing the varying adsorptive/oxidative trends, and an explanation thereof, was a second target. Finally, the establishment of the feasibility of a PRACF was sought. Through batch studies of the decolorization of methylene blue and procion red MX-B5 it was proven that the outcome of an AC-titania composite was not uniform. Rather both the adsorption and the adsorption/oxidation trends of the mechanofused materials varied considerably, depending on the AC's porosity and elemental composition. The factor determining whether the composite behaved synergistically was the existence of ionic metals in the carbon matrix. Those carbons with a high fraction of metals, when combined with TiO2, displayed enhanced dye removal. The objective of photocatalytically regenerating a GAC composite (1% by weight HD4000-TiO2), exhausted using methylene blue, was achieved.