Equilibrium, kinetic and thermodynamic studies on the adsorption of phenol onto graphene

被引：183

作者：

Li, Yanhui ^{[1
]}

Du, Qiuju ^{[1
]}

Liu, Tonghao ^{[1
]}

Sun, Jiankun ^{[1
]}

Jiao, Yuqin ^{[1
]}

Xia, Yanzhi ^{[1
]}

Xia, Linhua ^{[1
]}

Wang, Zonghua ^{[1
]}

Zhang, Wei ^{[2
]}

Wang, Kunlin ^{[2
]}

Zhu, Hongwei ^{[2
]}

Wu, Dehai ^{[2
]}

机构：

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

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

来源：

MATERIALS RESEARCH BULLETIN | 2012年 / 47卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Nanostructures; Chemical synthesis; Electron microscopy; AQUEOUS-SOLUTIONS; REMOVAL; WATER; DIFFUSION; OXIDATION; SORPTION; IONS;

D O I：

10.1016/j.materresbull.2012.04.021

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Graphene, a new member of carbon family, has been prepared, characterized and used as adsorbent to remove phenol from aqueous solution. The effect parameters including pH, dosage, contact time, and temperature on the adsorption properties of phenol onto graphene were investigated. The results showed that the maximum adsorption capacity can reach 28.26 mg/g at the conditions of initial phenol concentration of 50 mg/L, pH 6.3 and 285 K. Adsorption data were well described by both Freundlich and Langmuir models. The kinetic study illustrated that the adsorption of phenol onto graphene fit the pseudo second-order model. The thermodynamic parameters indicated that the adsorption of phenol onto graphene was endothermic and spontaneous. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：1898 / 1904

页数：7

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