Abstract
• Nanorod and nanowire mixed-phase of TiO 2 is synthesized via hydrothermal method. • Effect of reaction temperature on photoelectrochemical performance is investigated. • A superior photoelectrochemical water splitting performance was obtained. Titanium dioxide (TiO 2 ) is best photoanode for photoelectrochemical water splitting. Here, the effect of reaction temperature on titanium dioxide nanorods is studied via a hydrothermal synthesis method. The results reveal the reaction temperature has high impact on morphology, bandgap and photoelectrochemical properties. The photoelectrochemical performance of TiO 2 is enhanced as reaction temperature increase. When reaction temperature increases from 130℃ to 180℃, the photocurrent density and hydrogen generation increase from 0.65 mA/cm 2 , 72.49 μmol/cm 2 to 1.84 mA/cm 2 , 126.86 μmol/cm 2 respectively These results suggest the potential for the synthesis and usage of transition metal oxides/sulfides for efficient photoelectrochemical hydrogen production.
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