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

页码：23382 / 23389

页数：8

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