期刊
POWDER TECHNOLOGY
卷 198, 期 1, 页码 131-134出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.powtec.2009.10.026
关键词
Calcium carbonate; Calcite; Biomimetic; Carbonation; Organic substrate; Dodecanoic acid
资金
- National Natural Science Foundation of China [50372025]
A carbonation route for the synthesis of hydrophobic Calcium carbonate was studied. In the process, dodecanoic acid was used as an organic substrate to induce the nucleation and growth of calcium carbonate. The calcium carbonate particles were produced by means of carbonation of the mixture of calcium hydroxide and dodecanoic acid by bubbling CO2/N-2 gas mixture. The operating parameters such as temperature and the concentration of the organic substrate were varied to study their influences on the active ratio and contact angle of calcium carbonate particles. The morphology of the calcium carbonate particles was characterized with scanning electron microscopy (SEM). The synthesized calcium carbonate particles in the presence of the organic substrate are rod-like and ellipse-like particles. The polymorphs were characterized with X-ray diffraction (XRD). (C) 2009 Elsevier B.V. All rights reserved.
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