Adsorption of aniline from aqueous solution using graphene oxide-modified attapulgite composites

被引：0
|
作者：
Deng Q. [1 ,2 ]
Chen C. [1 ]
Lei Q. [1 ]
Liang J. [1 ]
Zhang T. [1 ]
Jiang J. [2 ]
机构：
[1] School of Materials Science and Engineering, State Key Laboratory for Environment-friendly Energy Materials, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang
[2] Jiangsu Provincial Key Laboratory of Palygorskite Science and Applied Technology, Huaiyin Institute of Technology, 1 Meicheng Road, Huaian
来源：
Deng, Qiulin | 2018年 / Royal Society of Chemistry卷 / 08期
关键词：
This work is supported by the Foundation of Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province (HPK201602); Sichuan's Training Program of Innovation and Entrepreneurship for Undergraduate (201810619040) and the Natural Science Foundation of Southwest University of Science and Technology (15zx7125);
D O I：
10.1039/C8RA04143A
中图分类号：
学科分类号：
摘要：
Adsorption is an efficient treatment method for aniline removal in water treatment. In this work, the composites of graphene oxide-modified attapulgite were prepared and used firstly to remove aniline from wastewater. The composites were characterized by Fourier transformed infrared, Brunauer-Emmett-Teller, scanning electron microscopy and X-ray diffraction analysis. The effects of initial concentration, time, temperature and pH value on adsorption of aniline on graphene oxide-modified attapulgite are investigated. pH and temperature are found to have a significant influence on the adsorption amount. The experimental results showed that graphene oxide-modified attapulgite possesses strong adsorption ability for aniline with hydrogen bond interaction. The saturated adsorption amount could reach up to 90 mg g-1 at pH = 2-4. The Langmuir isotherm is found to describe well the equilibrium adsorption data. Finally, graphene oxide-modified attapulgite is also observed to possess excellent reusability. © The Royal Society of Chemistry.
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页码：23382 / 23389
页数：7
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