The Modified Electrode Position of Uniform and Defect-free TiO2 Nanolayer onto Stainless Steel Substrate with Enhanced Photocatalytic Performance

摘要

The photocatalytic behavior of photocatalyst TiO2 nanolayers which were fabricated via a modified electrodeposition method in a nonaqueous media, have characterized in comparison to microlayers. The electrodeposition applied voltage and the electrodes distance were taken as control parameters to obtain the layers in the nanoscale thicknesses. The existence of TiO2 in the deposited sample was confirmed by energy dispersive X-ray analysis (EDAX) technique. The surface uniformity of the fabricated layers was studied by scanning electron microscopy (SEM). Both atomic force microscopy (AFM) images and ellipsometric analysis of the deposited films confirmed the nanometric thicknesses of the prepared oxide layers. The fabricated samples demonstrated high photocatalytic activity under UV irradiations. This functionality along with physical and chemical stability of the fabricated layers makes it possible to consider as a powerful photocatalyst in degradation of pollutants.