高等学校化学学报

高等学校化学学报 ›› 2003, Vol. 24 ›› Issue (8): 1492.

• 研究快报 • 上一篇    下一篇

利用室温固态反应制备球霰石型CaCO3粒子

任引哲1,2, 齐利民1, 马季铭1   

  1. 1. 北京大学化学与分子工程学院, 分子动态与稳态结构国家重点实验室, 北京 100871;
    2. 山西师范大学化学与材料科学学院, 临汾 041004
  • 收稿日期:2003-04-09 出版日期:2003-08-24 发布日期:2003-08-24
  • 通讯作者: 齐利民(1969年出生),男,博士,副教授,从事胶体与界面化学研究.Email:liminqi@chem.pku.edu.cn E-mail:liminqi@chem.pku.edu.cn
  • 基金资助:

    国家自然科学基金(批准号:20003001,20233010);教育部全国优秀博士论文作者专项资金(批准号:200020);留学回国人员科研启动基金资助

Synthesis of Spherical Vaterite CaCO3Particles by Solid-state Reaction at Room Temperature

REN Yin-Zhe1,2, QI Li-Min1, MA Ji-Ming1   

  1. 1. State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China;
    2. School of Chemistry and Materials Science, Shanxi Normal University, Linfen 041004, China
  • Received:2003-04-09 Online:2003-08-24 Published:2003-08-24

PDF (PC)

关键词: 室温固态反应, CaCO3粒子, 球霰石, 聚丙烯酸, 晶型调控

Abstract: Submicrometer-sized, spherical vaterite particles were synthesized by solid-state reaction at room temperature in the presence of poly(acrylic acid)(PAA).The obtained products were characterized by XRD, IRand SEM.It was revealed that with increasing PAA amount, the crystal polymorph of CaCO3particles varied gradually from pure calcite through a mixture of calcite and vaterite to pure vaterite, and the particle size decreased generally.It was proposed that in solid-state reaction, PAAinduced the formation of vaterite and the phase transformation from vaterite to calcite was prevented completely due to the absence of H2O, resulting in the formation of pure vaterite particles.

Key words: Solid-state reaction at room temperature, CaCO3particles, Vaterite, Poly(acrylic acid), Crystal polymorph control

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