| 有机改性硅的孔结构表征 |
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| 引用本文： | 赵亮,Gayle Newcombe,Leanne Britcher.有机改性硅的孔结构表征[J].河南师范大学学报(自然科学版),2005,33(3):76-80. |
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| 作者姓名： | 赵亮 Gayle Newcombe Leanne Britcher |
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| 作者单位： | 河南省科学院化学研究所,郑州,450002;Australian Water Quality Centre & CRC for Water Quality and Treatment, PMB 3, Salisbury SA 5108, Australia;Ian Wark Research Institute of University of South Australia, Mawson Lakes Campus, South Australia, 5095, Australia |
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| 基金项目： | 国家留学基金委资助项目(22841005) |
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| 摘 要： | 测定了5种不同有机改性硅吸附剂(十八烷基硅-C18、苯基硅-PHY、三丁基硅-Ct4、氨丙基硅-NAX、羧酸基硅-CCX1)以及常规氧化硅吸附剂的氮吸附等温线,运用BJH法计算了各个样品的孔径分布和微结构特征参数,并用DFT法对CCX1、C18和SIL分别进行了全孔分析.结果表明:5种不同有机改性硅与氧化硅同属中孔型吸附剂,改性导致吸附剂的孔隙率和比表面积出现不同程度的降低,改变了吸附剂的孔径分布状况.
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| 关 键 词： | 有机改性硅 孔结构 微结构特征 吸附 |
| 文章编号： | 1000-2367(2005)03-0076-05 |
| 收稿时间： | 2005-02-28 |
| 修稿时间： | 2005年2月28日 |
Charactering of Pore Structures and Adsorption Properties of Various Organic Modified Silicas |
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| ZHAO Liang,Gayle Newcombe,Leanne Britcher.Charactering of Pore Structures and Adsorption Properties of Various Organic Modified Silicas[J].Journal of Henan Normal University(Natural Science),2005,33(3):76-80. |
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| Authors: | ZHAO Liang Gayle Newcombe Leanne Britcher |
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| Abstract: | The nitrogen isothermal adsorption for the organic modified silicas (OMDs), octadecyl, phenyl, tertiary butyl, aminopropyl, carboxylic acid modified silicas and normal silicas has been examined. The BJH was utilized to character the pore structures and micro properties of the OMDs and DFT was also used to testimony the structures and properties of carboxylic acid, octadecyl modified silicas and normal silicas as well. The obtained results show that the five OMDs and normal silicas have mesopore structure, and chemical modification resulted in decreases of pore volume and surface area and changes of pore distribution of the OMDs. |
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| Keywords: | organic modified silicas pore structure micro properties adsorption |
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