Influnence of Sodium Polyacrylate on Crystallization and Aggregation of Butterfly-like Calcium Carbonate

• Published in: Chemical research in Chinese universities Vol. 29; no. 5; pp. 969 - 973
• Main Authors: Zhao, Li-na, Wang, Ji-ku, Wang, Zi-chen
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.10.2013; College of Chemistry, Jilin Normal University, Siping 136000, P.R.China; Key Laboratory of Preparation and Applications of Environmental Friendly Materials,Ministry of Education, Jilin Normal University, Siping 136000, P.R.China%College of Chemistry, Jilin University, Changchun 130012, P.R.China
• Subjects: Analytical Chemistry; Chemistry; Chemistry and Materials Science; Chemistry/Food Science; Inorganic Chemistry; Organic Chemistry; Physical Chemistry; 傅立叶变换红外光谱; 场发射扫描电子显微镜; 沉淀反应; 碳酸钙晶体; 结晶; 聚丙烯酸钠; 聚合; 蝶状; Aragonite; Sodium polyacrylate(PAAS); Butterfly-like calcium carbonate; Crystallization
• ISSN: 1005-9040; 2210-3171
• DOI: 10.1007/s40242-013-3125-4

Butterfly-like calcium carbonate（CaCO3） particles were successfully prepared via a facile precipitation reaction of Na2CO3 with CaCI2 in the presence of sodium polyacrylate（PAAS）. The as-prepared samples were cha- racterized with field emission scanning electron microscopy（FESEM）, X-ray diffraction（XRD） and Fourier transform infrared spectroscopy（FTIR）. Butterfly-like CaCO3 particles composed of three segment rods were obtained. Rod aggregates would act as the template for butterfly-like CaCO3 crystals consisted of regular shaped crystallites with 150--200 nm in diameter. The influences of reaction temperature, the amount of PAAS and reaction time on the nucleation and growth of CaCO3 crystals were investigated. The possible growth mechanism of CaCO3 crystals was discussed. This research can not onty make us further understand the general principles of the reaction, but also open up a new avenue of industrial production of CaCO3 particles with exquisite and unique morphologies.