Issue 7, 2003

Preparation of different morphologies of calcium sulfate in organic media

Abstract

In this paper, we reported an effective method for controlling CaSO4 crystal growth in organic media. Ca2+ and SO42− ions were extracted into the organic phase using different extractants. Different morphologies and sizes of CaSO4 nanocrystals including nanoparticles and nanosheets and long fibers were prepared by changing the molar ratio of [SO42−]∶[Ca2+] in the organic solvent at room temperature. The effect of the molar ratio of [SO42−]∶[Ca2+] on the CaSO4 growth process was studied principally by TEM. In addition, it was found that the diluent polarity could also affect the growth process of CaSO4 crystals.

Graphical abstract: Preparation of different morphologies of calcium sulfate in organic media

Article information

Article type
Paper
Submitted
02 Jan 2003
Accepted
16 May 2003
First published
29 May 2003

J. Mater. Chem., 2003,13, 1817-1821

Preparation of different morphologies of calcium sulfate in organic media

X. Song, S. Sun, W. Fan and H. Yu, J. Mater. Chem., 2003, 13, 1817 DOI: 10.1039/B212735K

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