Synthesis of TiO2 nanotubes via anodic oxidation in carbonated bath

Muhamad Arshad, Nur Nadia (2015) Synthesis of TiO2 nanotubes via anodic oxidation in carbonated bath. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

TiO2 nanotubes is synthesized on pure Ti foil by an anodic oxidation process approach. Several parameters were investigated such as the effect of the amount Na2CO3 and effect of annealing in aqueous and organic electrolyte solutions. The morphologies and phases of TiO2 nanotubes formed were characterized using Field Emission Scanning Electron Microscope (FESEM) for Ultra-high magnification imaging. The effect of annealing formed the crystalline TiO2 nanotubes of crystal structure and several phases were observed such as anatase and rutile. The optimum sample was in aqueous electrolyte solution containing 95 ml 1M of Na2SO4 added to it, 5 ml of H2SO4, 0.3 g of ammonium floride (NH4F) with the amount 0.3 g of Na2CO3 C. Energy Dispersive X-Ray (EDX) showed the elements inside of TiO2 nanotubes while the properties that influence the photocatalytic were also discovered by using degradation of methyl orange. X-ray diffraction (XRD) measurement is carried out for the quantification of phase which utilises the intensity ratios of the rutile and anatase. Raman microspectroscopy was employed effectively to differentiate the anatase and rutile. Photocatalytic testing are inexpensive, highly chemically stable and highly oxidizing whereas anodic oxidation are low cost, simple process, in vary rapid process and the parameter can be adjusted for optimum conditions. As a conclusion, TiO2 nanotubes produced by anodization of Ti foil conducted in fluorine carbonated bath and methyl orange is tested for photodegradation.

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