Facile synthesis of vaterite core-shell microspheres

被引：28
|
作者：
Yang, Ming [1 ]
Jin, Xiaoqi [2 ]
Huang, Qiao [1 ]
机构：
[1] Southeast Univ, Sch Transportat, Nanjing 210096, Peoples R China
[2] Wenshan Univ, Dept Biochem, Wenshan 66300, Peoples R China
来源：
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2011年 / 374卷 / 1-3期
基金：
国家高技术研究发展计划(863计划);
关键词：
Calcium carbonate; Core-shell; Crystal growth; Polyelectrolyte; CALCIUM-CARBONATE PARTICLES; BIOMIMETIC MINERALIZATION; BLOCK-COPOLYMER; CRYSTALLIZATION; CRYSTALS; CACO3; AGGREGATION;
D O I：
10.1016/j.colsurfa.2010.11.018
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Vaterite core-shell microspheres composed of core-nanoparticles and shell-hexagonal nanoplates are synthesized by precipitation route assisted by poly(styrene sulfonic acid) sodium salt (PSS). The as-prepared products are characterized by XRD and SEM. With the addition of PSS, the crystal phase of calcium carbonate is transferred from calcite to vaterite. The growth process of vaterite microspheres is investigated by SEM. It is supposed that the core-shell structured microspheres with the nanoparticles in core and the hexagonal plates at the outer layer are attributed to the adsorption of PSS, ammonia and the re-crystallization of the nanoparticles. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：102 / 107
页数：6
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