The effect of glycine on the growth of calcium carbonate in alkaline silica gel

被引：19

作者：

Gan, Xiong ^{[1
]}

He, Kunhuan ^{[1
]}

Qian, Baosong ^{[1
]}

Deng, Qin ^{[1
]}

Lu, Laixian ^{[1
]}

Wang, Yun ^{[1
]}

机构：

[1] Qinzhou Univ, Coll Petr & Chem Engn, Guangxi Coll & Univ Key Lab Beibu Gulf Oil & Nat, Qinzhou 535011, Peoples R China

来源：

JOURNAL OF CRYSTAL GROWTH | 2017年 / 458卷

关键词：

Crystal morphology; Diffusion; Calcium carbonate; Silica gel; FORMATION MECHANISM; RAMAN SPECTROSCOPY; BARIUM CARBONATE; CRYSTAL-GROWTH; ORGANIC MATRIX; VATERITE CACO3; BIOMINERALIZATION; PRECIPITATION; MORPHOLOGY; BIOMORPHS;

D O I：

10.1016/j.jcrysgro.2016.11.027

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Calcium carbonate was crystallized in alkaline silica gel with the presence of glycine. The crystallization proceeded with a counterdiffusion method by the reaction of calcium chloride and sodium carbonate. Optical microscopy observation showed a significant effect of glycine on the morphology control of calcite crystals. When the initial concentration of glycine was high enough (10 mg/mL, 20 mg/mL), spherical vaterite particles formed in alkaline silica gel concomitantly together with dumbbell shaped calcite particles. The in situ study by micro-Raman spectroscopy demonstrated that both vaterite and the concomitant calcite were stable phases during their growth processes since the initial appearance. A possible mechanism has been discussed to emphasize the effect of glycine on the nucleation of vaterite and the morphological control of calcite.

引用

页码：60 / 65

页数：6

共 54 条

[1] CONTROL AND DESIGN PRINCIPLES IN BIOLOGICAL MINERALIZATION [J].