期刊
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
卷 13, 期 10, 页码 6866-6871出版社
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/jnn.2013.7736
关键词
Adsorption-Dry Process; Cu; TiO2 Nanotube; Hydrogen Production
Cu species was introduced into TiO2 nanotube prepared by hydrothermal method via a facile adsorption-dry process. The fabricated sample exhibited excellent H-2 generation activity (76.3 mmol h(-1) g(catalyst)(-1)), which was higher than most of the reported Cu incorporated TiO2 samples, even superior to some Pt/Pd/Au/Ni incorporated TiO2. Compared to wet impregnation and in-situ photo-deposition methods, the facile adsorption-dry process was much simpler but more efficient to introduce Cu species into TiO2 for H-2 production. To fully understand the adsorption-dry process, characterizations of the samples were carried out by high-resolution transmission electron microscope, X-ray diffractometer, energy dispersive X-ray spectrometer, BET surface area analysis, UV-visible spectrophotometer and X-ray photoelectron spectroscopy. It was found that the facile adsorption-dry process could well maintain the morphology of TiO2 support, for instance, 1-D tubular structure and large BET surface area of TiO2 nanotube; moreover, the introduced Cu species was highly dispersed and intensively bonded with TiO2. All of these contributed to the high H-2 generation activity.
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