In this work, preparation of TiO2/stainless steel (TiO2/SS) electrode for degradation of Orange G (OG) by photoelectrochemical oxidation system (PEO) was studied. The TiO2/SS electrode was used as anode. It was prepared by sol-gel dip-coating method (SGDC). The poly(ethylene glycol) 2000 (PEG 2000) was used as surfactant, which could promote the formation of porous TiO2 film on SS surface. The influence of the preparation conditions such as surfactant concentration and calcination temperature was studied. The decoloration of OG was investigated by UV/Vis spectrophotometry. The decoloration of OG was carried out by PEO system at different PEG 2000 concentrations are shown in Figure 1(a). The result showed that the high color removal was observed under higher PEG concentration. Comparison of calcination temperatures were also shown in Figure 1(b). Obviously, the 93% color removal of OG was obtained at 550? mainly by the higher calcination temperature (650?) was leaded the crystal phase transferred from anataseto rutile phase. These findings indicated that the concentration of PEG 2000 and calcination temperature could influence the characterization of TiO2 deposition on SS substrate, which also affects the color removal efficiency of OG dye in the PEO system.Figure 1. Decolorization of OG at pH 3. (a) Various concentration of PEG; (b) various calcination temperature.

Preparation of TiO<sub>2</sub>/stainless steel electrode for degradation of dye solution using photoelectrochemical oxidation process

246th National Meeting (2013)

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Preparation of TiO2/stainless steel electrode for degradation of dye solution using photoelectrochemical oxidation process

Preparation of TiO₂/stainless steel electrode for degradation of dye solution using photoelectrochemical oxidation process