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水化硅酸钙对氯离子的吸附
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国家自然科学基金资助项目（51272068）；河南省杰出人才创新基金资助项目（114200510006）；河南理工大学博士基金资助项目（B2014 007）


Adsorption of Chloride Ion by Calcium Silicate Hydrate
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    摘要:

    通过化学分析法测定了水化硅酸钙（CSH）吸附氯离子的能力；通过核磁共振法和拉曼光谱法测定了水化硅酸钙的结构.结果表明：水化硅酸钙吸附氯离子的能力与其结构密切相关，水化硅酸钙平均链长约为4时，其吸附氯离子的能力最强；氯盐阳离子促进了水化硅酸钙链长的增加，使其吸附氯离子的能力增强；与钠离子相比，钙离子更能促进水化硅酸钙链长的增加，从而使其吸附更多的氯离子.

    Abstract:

    The ability of adsorption of chloride ion by calcium silicate hydrate(C S H) was tested by a chemical analysis method, and C S H structure was determined by nuclear magnetic resonance（NMR） spectroscopy and Raman spectroscopy The results show that the chloride ion adsorption ability of calcium silicate hydrate is closely related to its structure The calcium silicate hydrate with the average chain length of about 4 has the strongest chloride ion adsorption ability The cation of chloride salt promotes increasing average chain length of the calcium silicate hydrate, and enhances its chloride ion adsorption ability Compared with the sodium ion, calcium ion promotes better increasing average chain length of the calcium silicate hydrate, thereby adsorbing more chloride ions.

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勾密峰,管学茂,孙倩.水化硅酸钙对氯离子的吸附[J].建筑材料学报,2015,18(3):363-368

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  • 收稿日期:2013-11-01
  • 最后修改日期:2014-07-20
  • 在线发布日期: 2015-06-23
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