Calcium Carbonate Mineralization: X-ray Microdiffraction Probing of the Interface of an Evaporating Drop on a Superhydrophobic Surface

被引：29

作者：

Accardo, Angelo ^{[1
,2
]}

Burghammer, Manfred ^{[2
]}

Di Cola, Emanuela ^{[2
]}

Reynolds, Michael ^{[2
]}

Di Fabrizio, Enzo ^{[1
,3
]}

Riekel, Christian ^{[2
]}

机构：

[1] Magna Graecia Univ Catanzaro, Ctr Bionanotechnol & Engn Med, I-88100 Catanzaro, Italy

[2] European Synchrotron Radiat Facil, F-38043 Grenoble, France

[3] Italian Inst Technol, I-13163 Genoa, Italy

来源：

LANGMUIR | 2011年 / 27卷 / 13期

关键词：

IN-SITU; SMALL-ANGLE; SCATTERING; DIFFRACTION; PARTICLES; PROTEIN; GROWTH; MICRO; WATER;

D O I：

10.1021/la2014336

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The liquid/air interface of calcium bicarbonate solution drops was probed by synchrotron radiation microbeam scattering. The drops were deposited on a nanopatterned super-hydrophobic poly(methyl methacrylate) surface and raster-scanned during evaporation by small-angle and wide-angle X-ray scattering. The appearance of about 200-nm-size calcite crystallites at the interface could be spatially resolved at the onset of crystallization. Diffuse scattering from the interface is attributed to a dense nanoscale amorphous calcium carbonate phase. Calcite was found to be the major phase in the solid residue with vaterite as minor phase.

引用

页码：8216 / 8222

页数：7

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