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论文类型：期刊论文

发表时间：2010-01-15

发表刊物：MATERIALS LETTERS

收录刊物：SCIE

卷号：64

期号：1

页面范围：71-73

ISSN号：0167-577X

关键字：Calcium carbonate; Urchin-shaped; Three-dimensional; Microstructure; Characterization methods

摘要：Urchin-shaped CaCO3 microspheres were successfully synthesized by a facile low-temperature solution-phase method. The product was characterized with X-ray diffraction (XRD), Raman spectra and high resolution transmission electron microscopy (HRTEM). The characterization results revealed that the structure of the urchin-shaped CaCO3 was grown along the (104) crystal plane with a calcite structure. Furthermore, the valence states and the surface chemical compositions of CaCO3 were further identified by X-ray photoelectron spectroscopy (XPS). This study provides a simple method to prepare urchin-shaped CaCO3 microspheres in large scale, which broads their practical applications. (C) 2009 Elsevier B.V. All rights reserved.