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

被引：33
作者：
Deng, Qiulin [1 ,2 ]
Chen, Chong [1 ]
Lei, Qin [1 ]
Liang, Jianhao [1 ]
Zhang, Tinghong [1 ]
Jiang, Jinlong [2 ]
机构：
[1] Southwest Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Environm Friendly Energy Mat, 59 Qinglong Rd, Mianyang 621010, Peoples R China
[2] Huaiyin Inst Technol, Jiangsu Prov Key Lab Palygorskite Sci & Appl Tech, 1 Meicheng Rd, Huaian 223003, Peoples R China
来源：
RSC ADVANCES | 2018年 / 8卷 / 41期
关键词：
METHYLENE-BLUE DYE; METAL-IONS; REMOVAL; CARBON; NANOCOMPOSITE; PHENOL; POLLUTANTS; ADSORBENT; NITRIDE; U(VI);
D O I：
10.1039/c8ra04143a
中图分类号：
O6 [化学];
学科分类号：
0703 ;
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.
引用
收藏
页码：23382 / 23389
页数：8
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