| 高岭石结构缺陷的 1H MAS NMR和Raman研究 |
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| 引用本文： | 王林江,吴大清. 高岭石结构缺陷的 1H MAS NMR和Raman研究[J]. 无机化学学报, 2004, 20(5): 567-570 |
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| 作者姓名： | 王林江 吴大清 |
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| 作者单位： | 1. 桂林工学院材料与化学工程系,桂林,541004;中国科学院广州地球化学研究所,广东省矿物物理与材料研究开发重点实验室,广州,510640
2. 中国科学院广州地球化学研究所,广东省矿物物理与材料研究开发重点实验室,广州,510640 |
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| 基金项目： | 国家自然科学基金资助项目(No.40072014)，广东省自然科学基金资助项目(No.010496)，教育部科学技术研究重点项目(No.204113)，广西区学位委员会2003年学位授予权点学科建设经费资助项目。 |
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| 摘 要： | The structure default of kaolinites was characterized with 1H MAS NMR and Raman spectra. Although the HI indexes of Suzhou and Maoming kaolinite are similar, their 1H MAS NMR and Raman spectra are very different. 1H MAS NMR showed that the hydroxyl proton chemical shifts of Suzhou kaolinite are in the higher field and with larger different between the inner surface hydroxyls protons and inner hydroxyls proton chemical shifts than Maoming kaolinite. Raman spectra showed that the surface hydroxyls stretching vibration bands of Suzhou kaolinite are in the high frequency region, and the half height widths of the bands are 7.0～14 cm-1. The area ratio Sz/(Sz+SA), where SZ and SA are the areas of bands 3685 cm-1 and 3695 cm-1 respectively, is 0.23. But the surface hydroxyls stretching vibration bands of Maoming kaolinite are in the low frequency region, and the half height widths of the bands are 8.9～15.1 cm-1. The area ratio Sz/(Sz+SA) is 0.77. Those data proved that Suzhou kaolinite has lower structure default than Maoming kaolinite and 1H MAS NMR and Raman spectra are effective method for study of kaolinite structure default.
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| 关 键 词： | 高岭石 结构缺陷 1H MAS NMR Raman光谱 |
| 修稿时间： | 2003-10-22 |
1H MAS NMR and Raman Spectra of Kaolinite Structure Default |
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| WANG Lin-Jiang and WU Da-Qing. 1H MAS NMR and Raman Spectra of Kaolinite Structure Default[J]. Chinese Journal of Inorganic Chemistry, 2004, 20(5): 567-570 |
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| Authors: | WANG Lin-Jiang and WU Da-Qing |
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| Affiliation: | Department of Material and Chemical Engineering, Guilin Institute of Technology, Guilin 541004;Guangzhou Institute of Geochemistry, Chinese Academy of Sciences; Key Laboratory of Mineral Physics and Mineral Material, Guangzhou 510640 and Guangzhou Institute of Geochemistry, Chinese Academy of Sciences; Key Laboratory of Mineral Physics and Mineral Material, Guangzhou 510640 |
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| Abstract: | The structure default of kaolinites was characterized with 1H MAS NMR and Raman spectra. Although the HI indexes of Suzhou and Maoming kaolinite are similar, their 1H MAS NMR and Raman spectra are very different. 1H MAS NMR showed that the hydroxyl proton chemical shifts of Suzhou kaolinite are in the higher field and with larger different between the inner surface hydroxyls protons and inner hydroxyls proton chemical shifts than Maoming kaolinite. Raman spectra showed that the surface hydroxyls stretching vibration bands of Suzhou kaolinite are in the high frequency region, and the half height widths of the bands are 7.0~14 cm-1. The area ratio Sz /(Sz SA), where SZ and SA are the areas of bands 3 685 cm-1 and 3 695 cm-1 respectively, is 0.23. But the surface hydroxyls stretching vibration bands of Maoming kaolinite are in the low frequency region, and the half height widths of the bands are 8.9~15.1 cm-1. The area ratio Sz /(Sz SA) is 0.77. Those data proved that Suzhou kaolinite has lower structure default than Maoming kaolinite and 1H MAS NMR and Raman spectra are effective method for study of kaolinite structure default. |
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| Keywords: | kaolinite structure default 1H MAS NMR spectrum Raman spectrum |
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