期刊
RSC ADVANCES
卷 5, 期 116, 页码 95478-95487出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ra21805e
关键词
-
资金
- Shanghai Pujiang Program [07pj14047]
- National Natural Science Foundation of China [51572170]
This work reports the facile synthesis of reduced N/Ni-doped TiO2 nanotubes photoanodes and their photocatalytic activity application. The obtained photoanodes were characterized by scanning electron microscope (SEM), Raman spectrum (Raman), X-ray photoelectron spectroscopy (XPS) and diffuse reflectance absorption spectra. The narrowed band gap of TiO2 due to the doping of N and Ni elements could enhance the light absorption effectively. The NaBH4 reduction process resulted in the formation of oxygen vacancies in photoanodes. The electrochemical characterization revealed that photo-induced carriers were more efficient charge separation and transportation in reduced N/Ni-doped TiO2 nanotubes photoanodes. The highest photocurrent density obtained from reduced N/Ni-doped TiO2 nanotubes photoanodes was 2.52 mA cm(-2) at 0 V vs. Ag/AgCl in 1 M KOH solution, which was about five times as high as that obtained from undoped TiO2. .
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