期刊
RSC ADVANCES
卷 8, 期 34, 页码 18992-19000出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8ra02983k
关键词
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资金
- Program for Liaoning Excellent Talents in University [LR2014013]
- Science and Technology Foundation of Liaoning Province [201602052]
- National Natural Science Foundation of China [21476033]
- Natural Science Foundation of Liaoning Province [20170520427]
Herein, black TiO2 nanotube arrays (NTAs) were fabricated using electrochemical self-doping approaches, and characterized systemically by scanning electron microscopy (SEM), powder X-ray diffraction (XRD), UV-visible absorption spectroscopy and photoluminescence spectroscopy (PL). The as-obtained black TiO2 nanotube arrays (NTAs) exhibited stronger absorption in the visible-light region, a better separation rate of light-induced carriers, and higher electrical conductivity than TiO2 nanotube arrays (NTAs). These characteristics cause black TiO2 nanotube array (NTA) electrodes to have higher photoelectrocatalytic activity for degrading anthraquinone dye (reactive brilliant blue KN-R) than the TiO2 nanotube array (NTA) electrode. Furthermore, a synergetic action between photocatalysis and electrocatalysis was also observed. The black TiO2 nanotube array (NTA) electrode is considered to be a promising photoanode for the treatment of organic pollutants.
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