| 有机硅改性泥炭的吸附性能研究 |
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| 引用本文： | 周建伟,李术元. 有机硅改性泥炭的吸附性能研究[J]. 化工环保, 2004, 24(1): 12-14 |
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| 作者姓名： | 周建伟 李术元 |
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| 作者单位： | 石油大学化工学院,北京,102249;石油大学化工学院,北京,102249 |
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| 基金项目： | 河南省科技攻关项目课题 (编号 :991190 10 8) |
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| 摘 要： | 采用三甲基氯硅烷处理泥炭(泥炭硅烷化)，使其吸附性能得以改善。采用硅烷化泥炭自水溶液中吸附苯甲酸、苯甲醛和苯酚的等温线进行测定，对吸附过程的△G、△H和△s进行计算。试验结果表明：熵变是这类体系吸附过程的重要驱动力；硅烷化后的泥炭表面的疏水性明显增强，对水溶液中芳香族化合物的吸附量增大。
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| 关 键 词： | 泥炭 硅烷化 吸附剂 吸附性能 |
| 文章编号： | 1006-1878(2004)01-0012-03 |
| 修稿时间： | 2002-11-01 |
Study on Adsorptive Property of Silanized Peat |
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| Zhou Jianwei,Li Shuyuan. Study on Adsorptive Property of Silanized Peat[J]. Environmental Protection of Chemical Industry, 2004, 24(1): 12-14 |
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| Authors: | Zhou Jianwei Li Shuyuan |
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| Abstract: | Trimethylchlorosilane was used in the modification of peat to improve its adsorptive property.The adsorption isotherms of benzoic acid,benzaldehyde and phenol from water onto silanized peat were determined.The changes of free energy,enthalpy and entropy in adsorption processes were calculated.The results show that the change of entropy is an important driving force in this kind of adsorption processes;the hydrophobicity of the silanized peat is significantly increased,making it have stronger capacity of adsorbing aromatic compounds from water. |
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| Keywords: | peat silanization adsorbent adsorptive property |
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