Abstract
AbstractN‐doped TiO2/SrTiO3 heterostructured nanotubes with a highly reactive {001} facet of anatase TiO2 are fabricated by a combination of traditional anodization and conventional hydrothermal treatment. The photoelectrocatalytic and photoelectrochemical properties of the resulting nanotubes are investigated through the degradation of methylene blue and measurements of transient photocurrent and open‐circuit voltage, and the results are compared with those obtained with reference TiO2 and N‐doped TiO2 nanotubes. The synthesis principles and degradation mechanisms are also presented and discussed. The results clearly show that these heterostructured nanotubes have enhanced photoelectrocatalytic and photoelectrochemical properties under UV and visible‐light irradiation, and that the positive synergistic effect of N incorporation, dominant {001} facet of TiO2, and directional migration of photogenerated charges at the heterostructured interface can cooperatively promote the transfer and separation of the photogenerated carriers.
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