| 木棉基活性炭纤维的结构与吸附性能 |
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| 引用本文： | 王元庆,周美华.木棉基活性炭纤维的结构与吸附性能[J].合成纤维工业,2009,32(3). |
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| 作者姓名： | 王元庆 周美华 |
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| 作者单位： | 同济大学环境科学与工程学院,上海,200092 |
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| 基金项目： | 纤维材料改性国家重点实验室基金项目 |
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| 摘 要： | 采用浸渍磷酸氢二铵及化学活化法制备了3种木棉基活性炭纤维,其中AK-1没有经过预氧化处理,AK-2先浸渍再经预氧化处理,AK-3先经预氧化处理再浸渍;表征了3种活性炭纤维的表面物理化学结构及吸附性能。结果表明:3种活性炭纤维的平均孔径均约为2nm;预氧化处理提高了纤维的比表面积和纤维表面的含氧基团含量。AK-1具有最大的苯酚吸附量为65.8mg/g;AK-3具有最大的亚甲基蓝吸附量为156.7mg/g;AK-2具有最大的比表面积为1518m2/g和最多的表面含氧基团,对苯酚和亚甲基蓝的吸附量均不高,说明表面含氧基团降低了纤维对苯酚和亚甲基蓝的吸附量。吸附动力学研究表明,木棉基活性炭纤维吸附苯酚和亚甲基蓝符合拟二级动力学方程。
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| 关 键 词： | 木棉 活性炭纤维 比表面积 吸附性能 结构 |
Structure and adsorptive properties of kapok-based activated carbon fiber |
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| Wang Yuanqing,Zhou Meihua.Structure and adsorptive properties of kapok-based activated carbon fiber[J].China Synthetic Fiber Industry,2009,32(3). |
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| Authors: | Wang Yuanqing Zhou Meihua |
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| Affiliation: | College of Environmental Science and Engineering;Tongji University;Shanghai 200092 |
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| Abstract: | Three kinds of activated carbon fiber were prepared by immersing diammonium hydrogen phosphate via chemical activation method,in which AK-1 was not exposed to preoxidization,AK-2 to immersion prior to preoxidization,and AK-3 to preoxidization prior to immersion.The surface physico-chemical structure and adsorptive property of these three kinds of activated carbon fiber were characterized.The results showed that the average pore size of these three kinds of activated carbon fiber was about 2 nm,and the preox... |
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| Keywords: | kapok activated carbon fiber specific surface area adsorptive property structure |
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