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Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry Volume 42, 2012 - Issue 7
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Original Articles

Synthesis of Calcium Carbonate Crystals by Using Bacteria

Long Chen Department of Chemistry, Huangshan University, Huangshan, P. R. China; Mobile Post-Doctoral Center, School of Materials Science and Engineering, Hefei University of Technology, Hefei, P. R. China; Post-Doctoral Scientific Research Workstation, Huangshan NOVEL Co., Ltd., Huangshan, P. R. China
,
Hui Zhang Department of Chemistry, Huangshan University, Huangshan, P. R. China
,
Zhao-Peng Qi Department of Chemistry, Huangshan University, Huangshan, P. R. China
,
Wu Yao Department of Chemistry, Huangshan University, Huangshan, P. R. China
,
Jing-Jian Wan Department of Chemistry, Huangshan University, Huangshan, P. R. China
,
Ming Shao Department of Chemistry, Huangshan University, Huangshan, P. R. China
&
Cun-Chao Zhang Department of Chemistry, Huangshan University, Huangshan, P. R. China
 show all
Pages 972-975 | Received 22 Jun 2011, Accepted 26 Dec 2011, Published online: 06 Aug 2012
 
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Abstract

The synthesis of calcium carbonate (CaCO3) crystals in the presence of bacteria Escherichia coliform (E. coli) was investigated. The products were characterized by scanning electron microscopy, Fourier transform infrared spectroscopy and X-ray powder diffractometry. The results showed that calcite spherical superstructures constructed from small rhombohedral building units were formed with bacteria, and the particles are much larger than those formed without bacteria. The formation mechanism of CaCO3 crystals in the presence of E. coli is explored, suggesting that the bacterial biomolecules especially proteins may induce the nucleation, growth, and aggregation of CaCO3 crystals.

Acknowledgments

This work is supported by National Science Foundation of China (20871001, 21002096), Anhui Provincial Natural Science Foundation (10040606Q58, 11040606M41), the Science Foundation for Excellent Youth Scholars of Higher Education of Anhui Province (2011SQRL141, 2011SQRL142), and Project of Huangshan University (2008xkjq018, 2010xkjq001).

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