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Article Navigation> JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY> 2012> 21(1): 112-117
YOU Chao, ZHANG Qiang, ZHAO Yun, JIAO Qing-ze. Hollow calcium carbonate microspheres prepared in the presence of polyoxyethylene (20) sorbitan monolaurate and sodium dodecyl sulfate[J]. JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2012, 21(1): 112-117.
Citation: YOU Chao, ZHANG Qiang, ZHAO Yun, JIAO Qing-ze. Hollow calcium carbonate microspheres prepared in the presence of polyoxyethylene (20) sorbitan monolaurate and sodium dodecyl sulfate[J].JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2012, 21(1): 112-117.
shu

Hollow calcium carbonate microspheres prepared in the presence of polyoxyethylene (20) sorbitan monolaurate and sodium dodecyl sulfate

  • 1.

    School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing 100081, China

  • 2.

    School of Chemistry, Beijing Institute of Technology, Beijing 100081, China

  • Received Date:2010-10-29
    Abstract
  • Hollow calcium carbonate (CaCO 3) microspheres were prepared in aqueous solution with the presence of polyoxyethylene (20) sorbitan monolaurate (Tween20) and sodium dodecyl sulfate (SDS). The microspheres were characterized with X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscope (TEM). The X-ray diffraction data showed that the hollow CaCO 3microsphere consisted of calcite crystals. The influence of Tween20 and SDS concentrations on the morphology of CaCO 3crystals was investigated. The results suggested that the"core-shell model"of Tween20/SDS micelle aggregated as templates, which could control the growth of hollow CaCO 3microspheres. The interaction between mixed surfactants and calcium ions played a critical role in organizing calcium carbonate in microscopic level.
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