Effect of anionic surfactant on vaterite CaCO{sub 3}
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018 (China)
- Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004 (China)
Calcium carbonate (CaCO{sub 3}) crystals with various shapes have been synthesized by aging calcium chloride and urea hybrid solution containing sodium dodecylsulfonate (SDSN) or sodium dodecylbenzenesulfonate (SDBS) in a 90 deg. C bath. The effects of SDSN and SDBS on the morphology and polymorph of precipitated CaCO{sub 3} are investigated with the help of scanning electron microscopy (SEM), Fourier transform infrared (FT-IR) spectrometer and X-ray diffraction (XRD). Flower-like vaterite changes from monolayer to multilayer structure with the increase of SDSN concentration. While the crystal shape changes from plate-like, through rose-shaped, hat-like, to bicone-like as the concentration of SDBS is increased.
- OSTI ID:
- 21062269
- Journal Information:
- Materials Research Bulletin, Journal Name: Materials Research Bulletin Journal Issue: 12 Vol. 42; ISSN MRBUAC; ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
Similar Records
Empirically testing vaterite structural models using neutron diffraction and thermal analysis
Controlled crystallization of vaterite from viscous solutions of organic colloids