Karya Ilmiah
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The effect of calcogenate sulfur on the performance of the STiO2/Ti electrode as a photoelectrocatalytic sensor for phenolic compounds

M Z Muzakkar1, T Azis1, M S P Rajiani1, M Maulidiyah1, I Irwan1, F Mustapa2, L O A Salim1 and M Nurdin1
The TiO2/Ti and S-TiO2/Ti electrodes are effectively prepared using the anodizing process. The objective of this analysis is to determine the characteristics of the S-TiO2/Ti electrode and its efficiency as a photoelectrocatalytic sensor device. The composite electrode of S-TiO2/Ti was prepared using the Ti plate anodizing method in glycerol and NH4F 0.27 M with a bias potential of 25 V for 4 h followed by calcination at 500 oC for 90 minutes. Doping S to the TiO2/Ti electrode was carried out in sol-gel containing sulfur by the dip-coating process and then calcined for 10 minutes at 150 oC. The obtained TiO2/Ti and S-TiO2/Ti electrodes are characterized by UV-Vis DRS, XRD, SEM-EDX, and FTIR techniques. TiO2/Ti was shown to be active under UV light, while S-TiO2/Ti was active under visible light. We also observed that the best composition of the S-TiO2/Ti electrode was 1 M with a current value of 5.71x10-5 A in the visible area. The S-doped TiO2/Ti electrode photoelectrocatalytic activity was stronger than the undoped electrodes under visible light area irradiation.

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Diterbitkan pada: The 2-nd International Seminar on Science and Technology 2020 (ISST-2) 2020 Journal of Physics: Conference Series

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