NDLI: China rose petal as biotemplate to produce two-dimensional ceria nanosheets

Content Provider	Springer Nature Link
Author	Qian, Junchao Chen, Feng Zhao, Xiaobing Chen, Zhigang
Copyright Year	2011
Abstract	China rose petal was used as robust biotemplate for the facile fabrication of novel ceria nanosheet with a thickness of about 7 nm via a continuous infiltration process. The presence of well-resolved peaks ([111], [200], [220], and [311]) for the products revealed the formation of the fluorite-structured CeO$_{2}$. The detailed characterization by field-emission scanning electron microscope (FESEM), field-emission transmission electron microscope (FETEM), and atomic force microscopy (AFM) exhibited the biomorphic structure of polycrystalline ceria film with the nanoparticle size of ca. 6.98 nm. Based on the surface chemistry and biochemistry processes, a possible mechanism for the formation of CeO$_{2}$ nanosheets is proposed. Furthermore, nitrogen adsorption–desorption measurement and photoluminescence spectrum (PL) were employed to characterize the samples. The ceria nanosheet showed the existence of mesopores (pores 2–4 nm diameter) on its surface and a broad emission ranging from 350 to 500 nm in photoluminescence spectrum. X-ray photoelectron spectroscopy analysis (XPS) confirmed that the mesoporous nanosheets possessed more surface vacancies than the bulk CeO$_{2}$; hence these hierarchical CeO$_{2}$ layers appear to be potential candidates for catalytic applications.
Starting Page	7149
Ending Page	7158
Page Count	10
File Format	PDF
ISSN	13880764
Journal	Journal of Nanoparticle Research
Volume Number	13
Issue Number	12
e-ISSN	1572896X
Language	English
Publisher	Springer Netherlands
Publisher Date	2011-11-13
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Biotemplate Biomorphic mineralization China rose petal Nanosheet Synthesis Characterization and Evaluation of Materials Inorganic Chemistry Nanotechnology Optics, Optoelectronics, Plasmonics and Optical Devices Physical Chemistry
Content Type	Text
Resource Type	Article
Subject	Chemistry Nanoscience and Nanotechnology Atomic and Molecular Physics, and Optics Condensed Matter Physics Bioengineering Modeling and Simulation

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