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多壁碳纳米管吸附异甘草苷的热力学研究
引用本文:韩博,陈文,王新春,李乐,严欢,李文新.多壁碳纳米管吸附异甘草苷的热力学研究[J].新型炭材料,2010(1).
作者姓名:韩博  陈文  王新春  李乐  严欢  李文新
作者单位:1. 中国科学院,上海应用物理研究所,纳米医药研究室,上海,201800;教育部新疆特种植物药资源重点实验室,新疆,石河子,832002
2. 教育部新疆特种植物药资源重点实验室,新疆,石河子,832002
3. 中国科学院,上海应用物理研究所,纳米医药研究室,上海,201800
基金项目:石河子大学高层次人才科研启动基金,科技部重大基础研究前期研究专项 
摘    要:多壁碳纳米管可选择性地吸附结构相似的两种黄酮类化合物甘草苷和异甘草苷,研究了异甘草苷被多壁碳纳米管吸附的吸附热力学特征。结果表明:多壁碳纳米管吸附异甘草苷的量随着异甘草苷浓度的增加而增加,随着温度升高而降低。异甘草苷的吸附过程符合Freundlich方程。其ΔH0和ΔG0值表明该吸附反应是自发进行的放热反应。

关 键 词:多壁碳纳米管  异甘草苷  吸附  热力学

Adsorption thermodynamics of isoliquiritin on multi-walled carbon nanotubes
HAN Bo,CHEN Wen,WANG Xin-chun,LI Le,YAN Huan,LI Wen-xin.Adsorption thermodynamics of isoliquiritin on multi-walled carbon nanotubes[J].New Carbon Materials,2010(1).
Authors:HAN Bo  CHEN Wen  WANG Xin-chun  LI Le  YAN Huan  LI Wen-xin
Affiliation:HAN Bo1,2,CHEN Wen2,WANG Xin-chun2,LI Le2,YAN Huan2,LI Wen-xin1(1. Laboratory of Nano-biology , Medicine,Shanghai Institute of Applied physics,Chinese Academy of Science,Shanghai 201800,China,2. Key Laboratory of Xinjiang Phytomedicine Resources of Ministry of Education,Shihezi 832002,China)
Abstract:Multi-walled carbon nanotubes (MWCNTs) can selectively adsorb structurally-similar liquiritin and isoliquiritin,both of which are flavonoid compounds.The adsorption thermodynamics of isoliquiritin on MWCNTs was investigated.Results indicate that the quantity of isoliquiritin adsorbed increases with isoliquiritin concentration and decreases with temperature.Adsorption data can be well described by the Freundlich Equation.The values of ΔH~0 and ΔG~0 indicate that the adsorption is a spontaneous exothermic process.
Keywords:Multi-walled carbon nanotubes  Isoliquiritin  Adsorption  Thermodynamics
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