期刊
DALTON TRANSACTIONS
卷 42, 期 34, 页码 12087-12092出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3dt51247a
关键词
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资金
- National Natural Science Foundation of China [21076146, 21276184]
- Specialized Research Fund for the Doctoral Program of Higher Education of China [20120032110014]
- Program of New Century Excellent Talents in University of China [NCET-07-0599]
- Program of Introducing Talents of Discipline to University of China [B06006]
For the first time we synthesized mesoporous CeO2 nanosheets with single-crystal-like, ultrathin and uniform-sized structures through the thermal decomposition of specially prepared intermediates of Ce(OH)CO3 nanosheets. The resulting single-crystal-like CeO2 porous nanosheets are only 2.4 nm thick, as measured by AFM. BET analysis indicated that the pores of the nanosheets were centered at 3.7 nm. A novel structure transformation mechanism from 1D to 0D, then to a 2D assembly was clearly revealed. Moreover, such ultrathin CeO2 porous nanosheets exhibited much higher photocatalytic activity for dye degradation than that of polycrystalline CeO2 nanoparticles.
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