Fabrication of Anodic Titanium Oxide (ATO) for waste water treatment application

Abstract

In this study, forming of Anodic Titanium Oxide (ATO) that has a nanoporous and nanotube morphology was studied for waste water treatment application. Nanoporous anodic titanium oxide was obtained by anodization, using ethylene glycol merging with ammonium fluoride at room temp as electrolyte. The variables of the process were anodization time (5, 10, 15 and 20 min) and anodization voltages (20, 40 and 60 V). Field emission scanning electron microscopy revealed that separated nanotubes became obvious when the voltage is high. The samples with different ATO conditions were investigated by the degradation of methylene blue under UV light irradiation. It was found that the activity of the photocatalysis of ATO was significantly enhancement of the degradation of methylene blue. These results suggest that ATO/UV photocatalysis as a method for treatment of diluted waste waters in textile industries.