Formation of star-shaped calcite crystals with Mg{sup 2+} inorganic mineralizer without organic template
- School of Chemical and Materials Engineering, Southern Yangtze University, Wuxi, Jiangsu 214036 (China)
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026 (China)
- School of Chemical and Materials Engineering, Southern Yangtze University, Wuxi, Jiangsu 214036 (China) and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026 (China)
Star-shaped calcite crystals with 3-bar m symmetry were obtained in the mixed solvent of ethanol and H{sub 2}O (4:1vol%) using Mg{sup 2+} as grow mineralizer without any organic template under the solvothermal condition. The crystals branched to the six directions perpendicular to the c-axis. In the process, Mg{sup 2+} takes an important influence on such novel morphology via entering the crystal lattice of calcite to absorb the special plane and change the general growth habit. The aqueous solvent is favorable to form aragonite, while the presence of alcohol promotes the formation of calcite, the thermodynamically stable phase. The products were characterized by the techniques of XRD, SEM, SAED, IR and ICP. The formation process was also primarily studied.
- OSTI ID:
- 20784981
- Journal Information:
- Journal of Solid State Chemistry, Vol. 179, Issue 4; Other Information: DOI: 10.1016/j.jssc.2006.01.036; PII: S0022-4596(06)00041-7; Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0022-4596
- Country of Publication:
- United States
- Language:
- English
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