Biomimetic Synthesis of Calcium Carbonate Polymorphs Using the Lamellar Lyotropic Liquid Crystalline Systems of Calcium Dodecyl Sulfate
Biomimetic Synthesis of Calcium Carbonate Polymorphs Using the Lamellar Lyotropic Liquid Crystalline Systems of Calcium Dodecyl Sulfate
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DOI：
10.1021/cg7012107
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发表时间：
2008-09
影响因子：
3.8
通讯作者：
Q. Shen;Lian-cheng Wang;Xinping Li;Fenglin Liu
中科院分区：
文献类型：
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作者：
Q. Shen;Lian-cheng Wang;Xinping Li;Fenglin Liu
溶致液晶相在生物学中具有直接的相关性，因为在生命系统中普遍存在有组织的脂质结构。在具有明确定义的纳米级几何形状的水域中掺入亲水性试剂有利于无机物和/或无机-有机杂化物的纳米结构材料的构建。本文以十二烷基硫酸钙（CDS）、正戊醇和氨水（5wt%NH3·H2O水溶液）组成的层状中间相作为碳酸钙（CaCO 3）的沉淀介质。在二氧化碳气体的气氛下，发生的固-液-气反应在开始时仅导致菱面体方解石颗粒，然后最终导致方解石的层饼聚集体和文石的棒束聚集体。此外，文石含量增加的进行的三相反应的时间间隔，表明在CDS的层状中间相的碳酸钙的特殊的结晶习性。除了这些，T…
Lyotropic liquid crystalline phases have immediate relevance in biology because of the prevalence of organized lipid structures in living systems. The incorporation of hydrophilic reagents in water domains with well-defined nanoscale geometry favors the construction of nanostructured materials of inorganics, and/or the inorganic−organic hybrids. In this paper, the lamellar mesophases composed of calcium dodecyl sulfate (CDS), n-pentanol, and ammonia (5 wt% NH3·H2O in water) were constructed and used as the precipitation media of calcium carbonate (CaCO3). Under the atmosphere of carbon dioxide gas, the occurring solid−liquid−gas reaction resulted only in rhombohedral calcite particles at the beginning, then ultimately in layer-cake aggregates of calcite and stick-bundle aggregates of aragonite. Furthermore, the aragonite content increased with the proceeding time interval of the three-phase reaction, indicating a special crystallization habit of CaCO3 in the lamellar mesophases of CDS. Aside from these, t...