Synthesis in situ of Active Calcium Carbonate Nanoparticles via Simulating Biomineralization

Abstract

Abstract: A new method for mimic biomineralization was used to synthesize CaCO₃ . The organized organic substrates, which could associate with Ca ²⁺ by means of molecular recognition and induce the nucleation and growth of CaCO₃, were synthesized fristly, and followed by the preparation of the CaCO₃ by carbonation of a solution of Ca(OH)₂ with CO₂. Well dispersed spindle-like nano-CaCO₃ particles with an average width of 50 nm and a ratio of diameter to length about 1:5 were obtained under the given experimental conditions. The products were characterized by FTIR spectra, TGA analysis and transmission electron microscope(TEM).

Key words: Biomineralization, CaCO₃ nanoparticle, Synthesis in situ, Organic substrates, Spacial framework

CLC Number:

TQ127.13

TrendMD:

WANG Cheng-Yu, ZHAO Jing-Zhe, LIU Yan-Hua, GUO Yu-Peng Zhao Xu, DENG Yan-Hui, YANG Hua, WANG Zi-Chen . Synthesis in situ of Active Calcium Carbonate Nanoparticles via Simulating Biomineralization[J]. Chem. J. Chinese Universities, 2005, 26(1): 13.

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Synthesis in situ of Active Calcium Carbonate Nanoparticles via Simulating Biomineralization

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