| 碳纳米管/活性炭复合微球的制备及其对VB12的吸附应用 |
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| 引用本文： | 卢月美,巩前明,梁吉. 碳纳米管/活性炭复合微球的制备及其对VB12的吸附应用[J]. 物理化学学报, 2009, 25(8): 1697-1702. DOI: 10.3866/PKU.WHXB20090816 |
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| 作者姓名： | 卢月美 巩前明 梁吉 |
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| 作者单位： | Department of Mechanical Engineering, Tsinghua University, Beijing 100084, P. R. China,Key Laboratory for Advanced Materials Processing Technology, Ministry of Education, Tsinghua University, Beijing 100084, P. R. China |
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| 摘 要： | 采用反相乳液法制备碳纳米管/壳聚糖复合微球(CNTs/CTS), 并对其进一步炭化、活化制得碳纳米管/活性炭复合微球(CNTs/AC). 以此复合微球为吸附材料, 探索了其对中分子代表物质VB12的吸附. 研究结果表明, 碳纳米管含量70%(w)的复合微球经水蒸气适当活化后球形度好、吸附性能优异, 其对VB12的吸附量达23.59 mg·g-1, 分别是活性炭和大孔吸附树脂的5.4和2.7倍. 分析表明这是由于碳纳米管/活性炭复合微球具有发达的中孔结构.
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| 关 键 词： | 碳纳米管 壳聚糖 复合微球 吸附 |
| 收稿时间： | 2008-12-23 |
| 修稿时间： | 2009-06-19 |
Preparation of Carbon Nanotubes/Activated Carbon Composite Microspheres and Their Application to Adsorption of VBl2 |
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| LU Yue-Mei,GONG Qian-Ming,LIANG Ji. Preparation of Carbon Nanotubes/Activated Carbon Composite Microspheres and Their Application to Adsorption of VBl2[J]. Acta Physico-Chimica Sinica, 2009, 25(8): 1697-1702. DOI: 10.3866/PKU.WHXB20090816 |
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| Authors: | LU Yue-Mei GONG Qian-Ming LIANG Ji |
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| Affiliation: | Department of Mechanical Engineering, Tsinghua University, Beijing 100084, P. R. China|Key Laboratory for Advanced Materials Processing Technology, Ministry of Education, Tsinghua University, Beijing 100084, P. R. China |
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| Abstract: | Novel carbon nanotubes/activated carbon (CNTs/AC) composite microspheres were prepared by inverse emulsion polymerization, carbonization, and activation, and were applied to the adsorption of VB12, a representative of middle molecular weight toxins found in the human body. Results show that CNTs/AC composite microspheres with 70%(w) CNTs have good sphericity and their adsorption of VB12 reaches 23.59 mg·g-1, which is 5.4 and 2.7 times as much as that of activated carbon and macroporous resin, respectively. This is attributed to the more developed mesopores found in the microspheres. |
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| Keywords: | CNTs Chitosan Composite microsphere Adsorption |
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