Facile synthesis of thin black TiO 2 − x nanosheets with enhanced lithium-storage capacity and visible light photocatalytic hydrogen production

摘要: In combination of a facile and scalable solvothermal method solid-phase reduction reactions, novel two-dimensional black TiO2 − x nanosheet (TiO2 − x NS) with high specific surface area 108 m2 g−1 nearly total solar spectral absorption capability have been successfully prepared. With careful characterizations, the NS showed enhanced electrochemical performance visible-light photocatalytic activity than those their white TiO2 (TiO2 precursors. The electrode delivered reversible capacity 160 mA h g−1 even after cycling at 0.5 C (1 C = 190 mA h g−1) for 300 times, which was significantly higher corresponding (104 mA h g−1). Meanwhile, also exhibited ability hydrogen production that NS. It is expected making into ones an effective way to design photocatalysts visible light response anodes long lifetime rate in lithium ion batteries. could find potential applications field environmental management energy storage conversion.