In this study, we investigated the effect of calcium sources with different solubilities and the carbonic anhydrase (CA) enzyme on carbonate mineralization reaction, and analyzed the reaction rate, the morphology of the formed precipitate, and the surface. The CO₂ mineralization rate was affected by the rate of CO₂ hydration and the rate of Ca ionization. For all of the calcium sources tested, CA improved the overall carbonate mineralization rate, but depending on the solubility of each calcium source, the reaction rates were in the order of CaCl₂ > Ca(OH)₂ > CaO. From CaCl₂, calcium carbonate was generated rapidly. This was due to the high concentration of calcium ions in the solution because it was easily dissolved. But because of its high surface energy, calcite and vaterite coexisted. On the other hand, Ca(OH)₂ and CaO had relatively low solubility and the rate of calcium carbonate production was slow, but after the reaction, CaCO₃ with a calcite structure was formed. © 2020 Society of Chemical Industry and John Wiley & Sons, Ltd.

中文翻译：

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比较使用碳酸酐酶生产CaCO3的不同钙源的反应

在这项研究中，我们研究了不同溶解度的钙源和碳酸酐酶（CA）对碳酸盐矿化反应的影响，并分析了反应速率，形成的沉淀物的形态和表面。CO ₂矿化速率受CO ₂水合速率和Ca电离速率的影响。对于所有测试的钙源，CA改善了总体碳酸盐矿化速率，但取决于每种钙源的溶解度，反应速率的顺序为CaCl ₂ > Ca（OH）₂ > CaO。从CaCl ₂，碳酸钙迅速产生。这是由于溶液中钙离子的浓度很高，因为它很容易溶解。但是由于其高的表面能，方解石和球rite石共存。另一方面，Ca（OH）₂和CaO具有相对较低的溶解度，并且碳酸钙的产生速度较慢，但​​是在反应之后，形成具有方解石结构的CaCO ₃。©2020年化学工业协会和John Wiley＆Sons，Ltd.