高等学校化学学报

高等学校化学学报

• 研究论文 • 上一篇    下一篇

以L-组氨酸为模板仿生合成针状纳米碳酸钙

肖宇鹏1, 赵旭1, 赵丽娜1, 吴晓霞2, 雷洪1, 任素霞1, 王子忱1   

    1. 吉林大学化学学院, 长春 130012;
    2. 吉林大学分子酶学工程教育部重点实验室, 长春 130021
  • 收稿日期:2008-07-30 修回日期:1900-01-01 出版日期:2009-03-10 发布日期:2009-03-10
  • 通讯作者: 王子忱

Biomimetic Synthesis of Needle-shaped Nano-CaCO3 Particles with L-Histidine as the Template

XIAO Yu-Peng1, ZHAO Xu1, ZHAO Li-Na1, WU Xiao-Xia2, LEI Hong1, REN Su-Xia1, WANG Zi-Chen1*   

    1. College of Chemistry, Jilin University, Changchun 130012, China;
    2. Key Laboratory of Molecular Enzymology and Engineering, Ministry of Education, Jilin University, Changchun 130021, China
  • Received:2008-07-30 Revised:1900-01-01 Online:2009-03-10 Published:2009-03-10
  • Contact: WANG Zi-Chen

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摘要： 依据仿生合成原理, 以L-组氨酸为有机基质, 无水氯化钙和无水碳酸钠为原料, 通过简单的复分解反应制备出了平均直径约为80 nm, 长径比约为12∶1的针状纳米碳酸钙晶体. 利用高分辨扫描电子显微镜(FESEM)、X射线衍射仪(XRD)、傅里叶红外光谱议(FTIR)对产物进行了表征, 结果表明, 在不添加有机基质的溶液中得到立方状微米级的碳酸钙晶体, 添加L-组氨酸后得到针状纳米级的碳酸钙晶体, 并对L-组氨酸在仿生合成针状纳米碳酸钙过程中的作用机理进行了初步探讨.

关键词: 针状纳米碳酸钙, 仿生合成, L-组氨酸, 吸油值, 白度值

Abstract: Based on the theory of biomimetic synthesis, well dispersed needle-shaped nano-CaCO3 particles with an average width of 80 nm and a ratio of diameter to length about 1∶12 were synthesized via a simple precipitation reaction of Na2CO3 with CaCl2 in the presence of L-histidine. The products were characterized by field emission scanning electron microscopy(FESEM), X-ray diffraction(XRD), fourier transform infrared spectroscopy(FTIR) and whiteness meter. The results show that needle-shaped nano-CaCO3 crystals are obtained in the presence of L-histidine. Whereas, only cubic micron CaCO3 crystals were obtained without L-histidine. Due to its nano-size, high oil-absorbed value and high whiteness, the needle-shaped nano-CaCO3 particle was expected to be used as the filler for high-grade paper products, such as carbon paper, handkerchief paper, printing paper, etc.

Key words: Needle-shaped nano-CaCO3, Biomimetic synthesis, L-Histidine, Oil-absorbed value, Whiteness

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