EQUILIBRIUM, KINETIC AND THERMODYNAMIC STUDIES OF CATIONIC RED X-GRL ADSORPTION ON GRAPHENE OXIDE

被引：0

作者：

Sun, Jiankun ^{[1
]}

Li, Yanhui ^{[1
]}

Liu, Tonghao ^{[1
]}

Du, Qiuju ^{[1
]}

Xia, Yanzhi ^{[1
]}

Xia, Linhua ^{[1
]}

Wang, Zonghua ^{[1
]}

Wang, Kunlin ^{[2
,3
]}

Zhu, Hongwei ^{[2
,3
]}

Wu, Dehai ^{[2
,3
]}

机构：

[1] Qingdao Univ, Coll Electromech Engn, Lab Fiber Mat & Modern Text, Growing Base State Key Lab, Qingdao 266071, Peoples R China

[2] Tsinghua Univ, Key Lab Adv Mfg Mat Proc Technol, Beijing 100084, Peoples R China

[3] Tsinghua Univ, Dept Mech Engn, Beijing 100084, Peoples R China

来源：

ENVIRONMENTAL ENGINEERING AND MANAGEMENT JOURNAL | 2014年 / 13卷 / 10期

基金：

中国国家自然科学基金;

关键词：

adsorption; cationic red X-GRL; graphene oxide (GO); kinetics; thermodynamics; AQUEOUS-SOLUTION; METHYLENE-BLUE; REMOVAL; LEAD(II); IONS; DYES; CHITOSAN; BIOMASS;

D O I：

暂无

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Graphene oxide (GO) was prepared from expandable graphite by a modified Hummers' method and characterized by TEM, XRD, FTIR, and Raman spectroscopy. The batch adsorption experiments were carried out to study the effect of various parameters, such as the initial concentration, adsorbent dosage, initial pH, contact time and temperature on adsorption properties of cationic red X-GRL onto GO. The Langmuir and Freundlich models were used to fit the experimental data of adsorption isotherms. The kinetic studies showed that the adsorption data followed the pseudo-second order model. Thermodynamic studies indicated the reaction of cationic red X-GRL adsorbed by GO was a spontaneous and endothermic process. The results indicated that GO could be considered a promising adsorbent for the removal of dyes from aqueous solutions.

引用

页码：2551 / 2559

页数：9

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