To further improve the photooxidation techniques for water and wastewater purification, a new type of photoelectrode, Ti/Tio{sub}2 mesh electrode, was successfully prepared by anodizing Ti mesh in 0.5 M H{sub}2SO{sub}4 solution. The structural and surface morphology of the Ti/TiO{sub}2 electrode was examined by Raman spectroscopy and scanning electronic microscopy (SEM), respectively. The examination results indicated that its structure and properties were affected by its growth rate in the anodization process, and anatase TiO{sub}2 was dominant in its composition. The photocatalytic (PC) oxidation and photoelectrocatalytic (PEC) oxidation of rose Bengal (RB) in aqueous solution using the Ti/TiO{sub}2 electrode were investigated and compared. The experimental results demonstrated that the PEC oxidation by applying an electrical bias between the Ti/ TiO{sub}2 electrode and Pt electrode could significantly enhance the degradation rate of RB compared with the PC oxidation. It was found that the best performance of PEC oxidation was achieved by applying an electrical bias of 0.6 V. The efficiency of PEC oxidation was also compared with that of conventional PC oxidation in TiO{sub}2 suspension. The kinetic coefficient k for the PEC oxidation was determined to be between that of conventional PC oxidation in 0.3% and 1% TiO{sub}2 suspensions.
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