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Preparation and Photoelectrocatalytic Performance Study of Au-RGO/TiO2 NTs Photoelectrode
Zuo Jin Long,ShaoDong Yang,YiWen Li,Chong Tan,Zhi Xia,SiYing Yuan,ShiYou Yu,JunSheng Li 한국고분자학회 2022 Macromolecular Research Vol.30 No.11
In our research, The Au-reduced graphene oxide (RGO)/TiO2 nanotubes (NTs) photoelectrode was prepared by electrodeposition, and was characterized and analyzed by scanning electron microscope, X-ray energy scattering spectroscopy, X-ray diffraction, photoluminescence spectroscopy, and photoelectrochemical methods. The results show that the best preparation conditions is setting deposition voltage as 0.2 V and deposition time as 30 s. At the same time, the nano-gold is well supported on RGO/TiO2 NTs without changing the original nanotube array structure. After a 35 W mercury lamp and a 15 V bias are applied, the photoelectric degradation efficiency of methylene blue is 72%, slightly higher thanthose of the other two electrodes. which show demonstrate that the photocatalytic activity of Au-RGO/TiO2 NTs photoelectrodes under visible light is improved effectively.