Electron paramagnetic resonance (EPR) study of Cu2+ and Mn2+ ions interacting as probes with calcium carbonate during the transformation of vaterite into cubic calcite

Electron paramagnetic resonance (EPR) study of Cu2+ and Mn2+ ions interacting as probes with calcium carbonate during the transformation of vaterite into cubic calcite
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DOI：
10.1039/ft9969203211
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发表时间：
1996
期刊：
Journal of the Chemical Society, Faraday Transactions
影响因子：
--
通讯作者：
N. Nassrallah-Aboukaïs;A. Boughriet;J. Fischer;M. Wartel;H. Langelin;A. Aboukaïs
N. Nassrallah-Aboukaïs;A. Boughriet;J. Fischer;M. Wartel;H. Langelin;A. Aboukaïs
中科院分区：
其他
文献类型：
--
作者：
N. Nassrallah-Aboukaïs;A. Boughriet;J. Fischer;M. Wartel;H. Langelin;A. Aboukaïs

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研究了去离子水中痕量元素与碳酸盐(CaCO3)的相互作用。用电子顺磁共振、等离子体原子发射和高分辨电子显微镜等光谱技术研究了铜和锰的行为。结果表明，在低浓度下(10-4moldm-3)，这些金属在球石和立方方解石上不形成析出相，但它们与CaCO3结构相互作用，使球铁矿转变为立方方解石。我们的研究表明，这两种金属可以成功地用作跟踪和控制这种结晶转变的探针，并随时间评估其程度。
The interactions between trace elements and carbonates (CaCO3) in deionized water have been evaluated. The behaviour of Cu and Mn was investigated using spectrometric techniques, namely electron paramagnetic resonance, plasma atomic emission and high resolution electron microscopy. The results obtained show that, for low concentrations (10–4 mol dm–3), these metals do not form a precipitated phase on vaterite and cubic calcite, but they interact favourably with the CaCO3 structure leading to the transformation of vaterite into cubic calcite. Our investigations have resolved that these two metals can be used successfully as probes to follow and control this crystalline transformation and to assess its extent with time.