| FeCl3-CO2体系改性活性炭的研究 |
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| 引用本文： | 杨娇萍,田艳红. FeCl3-CO2体系改性活性炭的研究[J]. 北京化工大学学报(自然科学版), 2005, 32(2): 55-58 |
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| 作者姓名： | 杨娇萍 田艳红 |
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| 作者单位： | 北京化工大学碳纤维及复合材料研究所，北京 100029 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 以FeCl3为催化剂，用CO2对原料炭（LAC）进行改性。用乙醇、亚甲基蓝和VB12表征其吸附性能；氮气吸附（温度为77K）方法测定活性炭的孔结构，计算其BET比表面积；密度函数理论（DFT）表征其孔径分布。实验结果表明，改性后活性炭的BET比表面积和总孔容增加了1倍，使改性后活性炭对乙醇、亚甲基蓝和VB12的吸附量都有显著提高，且改性后活性炭的孔径分布更趋均匀。
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| 关 键 词： | 活性炭 催化改性 吸附性能 孔结构 活性炭 催化改性 吸附性能 孔结构 |
| 收稿时间： | 2004-08-30 |
| 修稿时间： | 2004-08-30 |
Modification of active carbon by FeCl3-CO2 system |
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| YANG Jiao-ping,TIAN Yan-hong. Modification of active carbon by FeCl3-CO2 system[J]. Journal of Beijing University of Chemical Technology, 2005, 32(2): 55-58 |
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| Authors: | YANG Jiao-ping TIAN Yan-hong |
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| Affiliation: | Institute of Carbon and Composites, Beijing University of Chemical Technology, Beijing 100029, China |
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| Abstract: | With FeCl3 as catalyst, the raw carbon (LAC) was successfully modified by CO2 used as activation agents. The adsorption performance of the activated carbon (AC) was characterized by ethanol, methylene blue and VB12. The pore structure of AC was measured by N2 at 77K. The pore distribution was characterized by DFT and the BET specific surface area of AC was calculated. Results show that the BET specific surface area and the total volume of the modified activated carbon increase considerably. Thus the adsorptive capacity of AC increases significantly. Furthermore, the pore distribution of AC becomes more even. |
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| Keywords: | active carbon accelerating modification adsorption performance pore structure |
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