|本期目录/Table of Contents|

[1]薛莲,许茜,邢卫红,等.温度对活性炭纤维吸附苯酚的热力学和动力学性能的影响[J].南京工业大学学报(自然科学版),2014,36(01):28-32.[doi:10.3969/j.issn.1671-7627.2014.01.006]
 XUE Lian,XU Xi,XING Weihong,et al.Effects of temperature on thermodynamics and dynamics performances for adsorption of phenol on activated carbon fibers[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2014,36(01):28-32.[doi:10.3969/j.issn.1671-7627.2014.01.006]
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温度对活性炭纤维吸附苯酚的热力学和动力学性能的影响()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
36
期数:
2014年01期
页码:
28-32
栏目:
出版日期:
2014-01-20

文章信息/Info

Title:
Effects of temperature on thermodynamics and dynamics performances for adsorption of phenol on activated carbon fibers
文章编号:
1671-7627(2014)01-0028-05
作者:
薛莲许茜邢卫红居沈贵
南京工业大学 化学化工学院 国家特种分离膜工程技术研究中心,江苏 南京 210009
Author(s):
XUE LianXU XiXING WeihongJU Shengui
National Engineering Research Center for Special Separation Membrane,College of Chemistry and Chemical Engineering,Nanjing University of Technology,Nanjing 210009,China
关键词:
吸附等温线 活性炭纤维 苯酚
Keywords:
adsorption activated carbon fibers phenol
分类号:
TQ028.8
DOI:
10.3969/j.issn.1671-7627.2014.01.006
文献标志码:
A
摘要:
实验考察不同温度下活性炭纤维(ACFs)对苯酚的静态吸附性能,利用Langmuir、Redlich-Peterson吸附等温模型和准二级动力学模型计算苯酚在ACFs上的动力学和热力学性能。结果表明:Redlich-Peterson吸附等温模型和准二级动力学模型能较好地描述吸附性能; 升高温度,ACFs的最大吸附容量Qmax减小,动力学吸附速率常数K2变大,吸附过程的吉布斯自由能ΔG的绝对值减小,吸附过程的焓变ΔH、熵变ΔS和吸附活化能Ea分别为-10.2 kJ/mol、-23.6 J/(mol·K)和55.2 kJ/mol,吸附过程为物理吸附。
Abstract:
The adsorption of phenol on activated carbon fibers(ACFs)at different temperatures was investigated by static adsorption experiments.Langmuir,Redlich-Peterson adsorption isotherm model and pesudo second-orde kinetic model were used to calculate the kinetics and thermodynamic performances of phenol on ACFs.Results showed that Redlich-Peterson and pesudo second-order equation could describe the adsorption well.The maximum adsorption capacity(Qmax)was decreased,kinetics adsorption rate constants(K2)increased and absolute values of Gibbs free energy(ΔG)decreased with the rise of the temperature.The thermodynamic constants of adsorption(ΔH and ΔS)and activation energy(Ea)were found as -10.2 kJ/mol,-23.6 J/(mol·K)and 55.2 kJ/mol,it showed that adsorption process belonged to physical adsorption.

参考文献/References:

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相似文献/References:

[1]胡涛,马正飞,姚虎卿.吸附热预测吸附等温线[J].南京工业大学学报(自然科学版),2002,24(02):34.[doi:10.3969/j.issn.1671-7627.2002.02.008]

备注/Memo

备注/Memo:
收稿日期:2013-03-07
基金项目:国家杰出青年基金(21125629); 国家自然科学基金(21076102); 江苏省高校自然科学基金(10KJB530002)
作者简介:薛莲(1987—),女,江苏泰州人,硕士,主要研究方向为水处理; 邢卫红(联系人),研究员,E-mail:xingwh@njut.edu.cn..
更新日期/Last Update: 2014-01-20