화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2008년 봄 (04/23 ~ 04/25, 제주ICC)
권호 14권 1호, p.353
발표분야 분리기술
제목 Polymorphic Change of Calcium Carbonate by Addition of Silk Amino Acid to Crystallization Solution
초록 Biomineralisation is the synthesis of minerals from simple compounds by organism. Calcium carbonate (CaCO3), one of the most abundant biominerals, is found as different polymorphs of calcite and vaterite.
In the study, crystallization of calcium carbonate using aqueous calcium chloride and sodium carbonate at room temperature was performed. The polymorphic control of crystalline calcium carbonate was achieved by adjusting the operating conditions. Calcium carbonate crystals were nucleated with silk amino acids. Silk amino acids were used as effective modifiers to mediate the crystallization of CaCO3. The obtained crystals were characterized by scanning electron microscopy(SEM), Fourier transform infrared spectroscopy(FT-IR) and X-ray diffraction(XRD).
Acknowledgement
This research was supported by KOSEF grant.
저자 김진호
소속 충남대
키워드 Calcium carbonate; Crystallization; Biomineralisation
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