The effect of ergocalciferol on the precipitation of calcium carbonate

被引：10

作者：

Amer, Lydia ^{[1
]}

Ouhenia, Salim ^{[1
]}

Belabbas, Imad ^{[1
]}

Chateigner, Daniel ^{[2
]}

机构：

[1] Univ Bejaia, Lab Physchim Mat & Catalyse, Bejaia 06000, Algeria

[2] Univ Caen Normandie, Normandie Univ, Lab CRISMAT ENSICAEN, IUT Caen,CNRS UMR 6508, 6 Bd M Juin, F-14050 Caen, France

来源：

JOURNAL OF CRYSTAL GROWTH | 2018年 / 501卷

关键词：

Biomineralisation; Calcium carbonate; Rietveld method; Ergocalciferol; CRYSTAL-GROWTH; BIOMIMETIC MINERALIZATION; CORAL BIOMINERALIZATION; SILK FIBROIN; CACO3; VATERITE; ARAGONITE; CRYSTALLIZATION; TRANSFORMATION; SUPERSTRUCTURES;

D O I：

10.1016/j.jcrysgro.2018.08.032

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

We have conducted the first study on the effect of ergocalciferol (vitamin D-2) on the polymorphism of calcium carbonate. CaCO3 particles are synthesised from aqueous solutions of sodium carbonate and calcium chloride, in the presence of vitamin D-2 with different concentrations, at temperatures ranging from 25 to 80 degrees C. The effect of the additive on the polymorphism and the morphology of the CaCO3 crystallites are characterised using X-ray quantitative phase analysis, scanning electron microcopy (SEM) and Fourier transform infrared spectroscopy (FT-IR). Our results show that the presence of vitamin D-2 has an impact on the morphology and composition of the CaCO3 crystallites. Vitamin D-2 was demonstrated to promote the formation of aragonite a 50 degrees C with a volume fraction that can reach 83%. Such effect can be attributed to the formation of D-2-Ca+2 ion solution complexes and their adsorption on the surfaces of the CaCO3 crystallites.

引用

页码：49 / 59

页数：11

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