• Bulletin of the Chinese Ceramic Society
  • Vol. 43, Issue 10, 3858 (2024)
HU Xiaoting1, ZHOU Yutao1, LIU Yongmei1, GUO Jiemin1, MENG Xiufang2, and SHEN Shuguang1、*
Author Affiliations
  • 1College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan 030024, China
  • 2Shanxi Dadi Environmental Resources Co., Ltd., Taiyuan 030012, China
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    DOI: Cite this Article
    HU Xiaoting, ZHOU Yutao, LIU Yongmei, GUO Jiemin, MENG Xiufang, SHEN Shuguang. Research Progress on Influences of Cations on Preparation of Calcium Sulfate Hemihydrate Whiskers[J]. Bulletin of the Chinese Ceramic Society, 2024, 43(10): 3858 Copy Citation Text show less

    Abstract

    The effects of soluble ions on the morphology and crystal growth of calcium sulfate hemihydrate whiskers are very significant. In order to gain a deeper understanding of the basic theory of regulating whiskers, this paper summarises the progress of research on the effects of different types and concentrations of soluble cations in desulfurization gypsum on the whisker preparation. The low concentration of Na+ has a small effect on the calcium sulfate hemihydrate whiskers and barely affects the morphology and surface smoothness of the whiskers. The content of K+ is suitable to be 3% (mass fraction) or below, and the higher content has a detrimental effect on the growth of calcium sulfate hemihydrate whiskers. Mg2+ makes the whisker surface more homogeneous and crystalline. And the trace amount of selective adsorption of Al3+ has no effect on the whisker length-to-diameter ratio. Similar to K+, Fe3+ also has the optimal concentration, which is lower than 2 mmol/L. Unlike the cations mentioned above, Cu2+ is not from the raw material, but is an additional ion introduced in the doping of the appropriate amount of Cu2+ is conducive to the formation of whiskers with a smooth and uniform surface.
    HU Xiaoting, ZHOU Yutao, LIU Yongmei, GUO Jiemin, MENG Xiufang, SHEN Shuguang. Research Progress on Influences of Cations on Preparation of Calcium Sulfate Hemihydrate Whiskers[J]. Bulletin of the Chinese Ceramic Society, 2024, 43(10): 3858
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