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Issue 7, 2014
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Controlled morphogenesis and self-assembly of bismutite nanocrystals into three-dimensional nanostructures and their applications

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Abstract

We report the morphogenesis and self-assembly of bismutite nanocrystals with fully tunable morphologies from square plates, octagonal sheets, and round disks into three-dimensional hierarchical nanostructures. The results show that the nucleation, growth and self-assembly of bismutite nanocrystals strongly depend on the synergistic effect between hydroxide and citrate ions. The three-dimensional hierarchical nanostructures are formed through an oriented-attachment of bismutite nanocrystals along the 〈001〉 directions. The bismutite hierarchical nanostructures can be utilized for efficient and selective adsorption and separation. A novel surface-enhanced Raman spectroscopy platform based on a bismutite/gold nanoparticles core–shell structure has been developed for ultrasensitive detection of aromatic molecules with a detection limit down to 1 nM.

Graphical abstract: Controlled morphogenesis and self-assembly of bismutite nanocrystals into three-dimensional nanostructures and their applications

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Article information


Submitted
08 Nov 2013
Accepted
17 Dec 2013
First published
18 Dec 2013

J. Mater. Chem. A, 2014,2, 2275-2282
Article type
Paper
Author version available

Controlled morphogenesis and self-assembly of bismutite nanocrystals into three-dimensional nanostructures and their applications

X. Zhang, Y. Zheng, D. G. McCulloch, Leslie. Y. Yeo, James. R. Friend and D. R. MacFarlane, J. Mater. Chem. A, 2014, 2, 2275
DOI: 10.1039/C3TA14587E

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