Synthesis and characterization of aragonite whiskers by a novel and simple route

Wenzhong Wang; Guanghou Wang; Yingkai Liu; Changlin Zheng; Yongjie Zhan

doi:10.1039/B100556L

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Wenzhong Wang,^ab Guanghou Wang,*^ab Yingkai Liu,^a Changlin Zheng^a and Yongjie Zhan^a

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* Corresponding authors

^a National Laboratory of Solid State Microstructures & Department of Physics, Nanjing University, Nanjing, P. R. China
E-mail: wangqun@nju.edu.cn

^b Structure Research Laboratory, University of Science and Technology of China, Hefei, Anhui, P. R. China

Abstract

A novel and simple synthetic method for the preparation of aragonite whiskers has been developed, whereby aqueous solutions of CaCl₂ and Na₂CO₃ are combined in the presence of a suitable surfactant, poly(ethylene glycol)-20 000 (abbreviated as PEG), under ambient reaction conditions. The whiskers have high aspect ratios ranging from 20 to 80 with diameters in the range 0.50–1 µm. They were characterized by powder X-ray diffraction (XRD), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR) and Raman spectroscopy. The formation of aragonite whiskers is due to the soft template effect of PEG.

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Article information

DOI: https://doi.org/10.1039/B100556L
Article type: Paper
Submitted: 16 Jan 2001
Accepted: 02 Apr 2001
First published: 01 May 2001

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J. Mater. Chem., 2001,11, 1752-1754

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