多孔炭的物理化学性能对其吸附性能的影响

多孔炭的物理化学性能对其吸附性能的影响

齐菊锐, 李陟, 许宏鼎, 王子忱

吉林大学化学学院, 长春 130023

收稿日期:2004-05-31 修回日期:1900-01-01 出版日期:2005-01-26 发布日期:2005-01-20
通讯作者: 许宏鼎

Effect of Physicochemical Characteristic of Porous Carbon on Its Performance of Adsorption

QI Ju-rui, LI Zhi, XU Hong-ding, WANG Zi-chen

Department of Analytical Chemistry, College of Chemistry, Jilin University, Changchun 130023, China

Received:2004-05-31 Revised:1900-01-01 Online:2005-01-26 Published:2005-01-20
Contact: XU Hong-ding

摘要/Abstract

摘要： 通过多孔炭对酚类化合物、 Cr(Ⅵ)和I₂的吸附，研究了多孔炭的表面物理化学性能对不同电性物种吸附能力的影响. 发现多孔炭对酚类化合物及Cr(Ⅵ)的吸附以化学吸附为主，其中对酚类化合物的吸附由羧基与内酯基的表面密度合量决定，对Cr(Ⅵ)的吸附由表面官能团中羧基和内脂基含量的合量决定；多孔炭对I₂的吸附以物理吸附为主，由孔容决定.

关键词: 多孔炭, 吸附性, 碘, 铬(Ⅵ), 酚类化合物

Abstract: By adsorbing phenolic compounds, Cr(Ⅵ) and I₂, the effect of the physicochemical characteristic of the porous carbon on its adsorption performance for different species was studied. It is shown that the adsorption of the porous carbon towards I₂ depends on the pore volume of the porous carbon; the adsorption of the porous carbon towards phenolic compounds depends on the density of carboxylic and lactonic groups on the surface of the porous carbon; the adsorption of the porous carbon towards Cr(Ⅵ) depends on the total content of basic, carboxylic and lactonic groups on the surface of the porous carbon.

Key words: porous carbon, adsorption, iodine, chromium(Ⅵ), phenolic compound

中图分类号:

O621

齐菊锐, 李陟, 许宏鼎, 王子忱. 多孔炭的物理化学性能对其吸附性能的影响[J]. J4, 2005, 43(01): 95-100.

QI Ju-rui, LI Zhi, XU Hong-ding, WANG Zi-chen. Effect of Physicochemical Characteristic of Porous Carbon on Its Performance of Adsorption[J]. J4, 2005, 43(01): 95-100.

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