期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 185, 期 1, 页码 77-85出版社
ELSEVIER
DOI: 10.1016/j.jhazmat.2010.08.125
关键词
Photocatalyst; P-doped; TiO2; Carbon nanotubes; Hydrothermal
资金
- State Ministry of Science and Technology [2008BAE64B05, 2006BAJ04A12-4]
- State Key Laboratory of Subtropical Building Science of China [2008ZA09, 2009ZB05]
- Department of Science and Technology of Guangdong Province [2007A032500005]
A novel nanoscale photocatalyst CNTs/P-TiO2 was successfully prepared by hydrothermal method. The morphology and the physicochemical properties of the prepared samples were investigated using TEM, XPS, XRD, BET, FTIR, TG-DSC and UV-vis DRS spectroscopy. The photocatalytic activity was evaluated by degradation of methyl orange (MO) dye. The results demonstrated that CNTs/P-TiO2 nanoparticles could effectively photodegrade MO not only under UV irradiation but also under visible-light (VL) irradiation. The MO degradation performance on CNTs/P-TiO2 was superior to that of the commercial P25. The optimal mass ratio of CNTs to P-TiO2 in the nanocomposite catalyst was 5:100. The synergetic effect was discussed in terms of different roles played by phosphorus doping and introducing CNTs into the composite catalysts. (C) 2010 Published by Elsevier B.V.
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