Visible-light-driven photoelectrochemical and photocatalytic performances of Cr-doped SrTiO3/TiO2 heterostructured nanotube arrays
Zhengbo JiaoState Key Laboratory for Oxo Synthesis & Selective Oxidation, and National Engineering Research Center for Fine Petrochemical Intermediates, Lanzhou Institute of Chemical Physics, CAS, Lanzhou 730000, ChinaTao ChenState Key Laboratory for Oxo Synthesis & Selective Oxidation and National Engineering Research Center for Fine Petrochemical Intermediates, Lanzhou Institute of Chemical Physics, CAS, Lanzhou, 730000, ChinaJinyan XiongState Key Laboratory for Oxo Synthesis & Selective Oxidation and National Engineering Research Center for Fine Petrochemical Intermediates, Lanzhou Institute of Chemical Physics, CAS, Lanzhou, 730000, ChinaTeng WangState Key Laboratory for Oxo Synthesis & Selective Oxidation and National Engineering Research Center for Fine Petrochemical Intermediates, Lanzhou Institute of Chemical Physics, CAS, Lanzhou, 730000, ChinaGongxuan LüState Key Laboratory for Oxo Synthesis & Selective Oxidation and National Engineering Research Center for Fine Petrochemical Intermediates, Lanzhou Institute of Chemical Physics, CAS, Lanzhou, 730000, ChinaJinhua YeInternational Center for Materials Nanoarchitectonics (MANA) and Research Unit for Environmental Remediation Materials, National Institute for Materials Science, Tsukuba, 305-0047, JapanYingpu BiState Key Laboratory for Oxo Synthesis & Selective Oxidation and National Engineering Research Center for Fine Petrochemical Intermediates, Lanzhou Institute of Chemical Physics, CAS, Lanzhou, 730000, China
2013en
ABI
Annotatsiya
Well-aligned TiO2 nanotube arrays have become of increasing significance because of their unique highly ordered array structure, high specific surface area, unidirectional charge transfer and transportation features. However, their poor visible light utilization as well as the high recombination rate of photoexcited electron-hole pairs greatly limited their practical applications. Herein, we demonstrate the fabrication of visible-light-responsive heterostructured Cr-doped SrTiO3/TiO2 nanotube arrays by a simple hydrothermal method, which facilitate efficient charge separation and thus improve the photoelectrochemical as well as photocatalytic performances.
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