期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 690, 期 -, 页码 640-646出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2016.08.176
关键词
Cake-like; Mixed phase TiO2; Metal-organic frameworks; Nitrobenzene; Photocatalysis
资金
- National Natural Science Foundation of China [21401180]
Cake-like anatase/rutile mixed phase TiO2 (A/R TiO2) was successfully prepared through pyrolyzation of metal-organic frameworks MIL-125. Its morphology, structure and photocatalytic performance for degradation of nitrobenzene under UV light irradiation were investigated by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, nitrogen adsorption-desorption isotherms, UV-Vis absorption spectroscopy, photocurrent and photoluminescence spectroscopy, respectively. The results show that the cake-like A/R TiO2 exhibits excellent photocatalytic performance with a maximum nitrobenzene degradation rate of 97% and corresponding mineralization rate of 77% at 100 min under UV light irradiation, which, is better than those of cake-like rutile TiO2 and anatase TiO2. The improved photocatalytic performance is ascribed to the reduced electron-hole pair recombination in cake-like AIR TiO2. (C) 2016 Elsevier B.V. All rights reserved.
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