Effects of magnesium and temperature control on aragonite crystal aggregation and morphology

被引：26

作者：

Fermani, S. ^{[1
]}

Dzakula, B. Njegic ^{[2
]}

Reggi, M. ^{[1
]}

Falini, G. ^{[1
]}

Kralj, D. ^{[2
]}

机构：

[1] Alma Mater Studiorum Univ Bologna, Dipartimento Chim Giacomo Ciamician, Via Selmi 2, I-40126 Bologna, Italy

[2] Rudjer Boskovic Inst, Lab Precipitat Proc, POB 180, HR-10002 Zagreb, Croatia

来源：

CRYSTENGCOMM | 2017年 / 19卷 / 18期

关键词：

NEEDLE-LIKE ARAGONITE; CALCIUM-CARBONATE; 110; TWIN; BIOMINERALIZATION; PRECIPITATION; NUCLEATION; IONS; MG2+;

D O I：

10.1039/c7ce00197e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this study, the influence of Mg2+ on the aggregation and morphology of precipitated aragonite crystals is investigated at different temperatures. Different from some investigations described in the literature, aragonite precipitates in chemical systems in which Mg2+ acts specifically as crystal habit modifiers and not as polymorphic selectors. The results show that at increased Mg2+ concentration and temperature the aragonite crystals are less aggregated and that the amount of crystals sharing {110} faces and having larger extension of {001} faces increases. These outcomes may be relevant in biological, geochemical and technological contexts.

引用

页码：2451 / 2455

页数：5

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