Issue 7, 2014

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

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

Supplementary files

Article information

Article type
Paper
Submitted
08 Nov 2013
Accepted
17 Dec 2013
First published
18 Dec 2013

J. Mater. Chem. A, 2014,2, 2275-2282

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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