title: Preparation, formation mechanism and photocatalysis of ultrathin mesoporous single-crystal-like CeO2 nanosheets.
abstract: 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.
authors.affiliation: Tianjin Collaborative Innovation Center for Chemistry and Chemical Engineering, Tianjin Key Laboratory of Applied Catalysis Science & Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, PR China.
authors.forename: Yifu
authors.initials: Y
authors.lastname: Yu
authors.forename: Yingming
authors.initials: Y
authors.lastname: Zhu
authors.forename: Ming
authors.initials: M
authors.lastname: Meng