Inhibiting Effects of Trace Amounts of Lanthanum Ion on the Dissolution of Calcite: A Comparative Study on Calcium Carbonate Polymorphs
Inhibiting Effects of Trace Amounts of Lanthanum Ion on the Dissolution of Calcite: A Comparative Study on Calcium Carbonate Polymorphs
复制标题
微量镧离子对方解石溶解的抑制作用：碳酸钙多晶型物的比较研究
DOI：
10.1246/cl.2002.890
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发表时间：
2002
影响因子：
1.6
通讯作者：
T. Akagi
中科院分区：
文献类型：
--
作者：
Natsumi Kamiya;H. Kagi;K. Notsu;H. Tsuno;T. Akagi
向溶液中添加5μM镧离子对方解石的溶解有显着的抑制作用，而在相同条件下文石和球霰石均未观察到抑制作用。原位 AFM（原子力显微镜）图像表明，方解石台阶处沉积的微沉淀物抑制了在掺镧溶液中的溶解。给定溶液的溶解度计算与作为微沉淀物的碳酸镧一致。
A significant inhibiting effect was observed on the dissolution of calcite by addition of 5 μM lanthanum ion to the solution, whereas no inhibition was observed both for aragonite and vaterite under the same conditions. In situ AFM (atomic force microscopy) images suggested that micro-precipitates depositing at the step site of calcite inhibited the dissolution in the lanthanum-doped solution. The solubility-calculation for the given solution was consistent with lanthanum carbonate being the micro-precipitate.