• 文献标题:   Adsorption of aniline from aqueous solution using graphene oxide-modified attapulgite composites
  • 文献类型:   Article
  • 作  者:   DENG QL, CHEN C, LEI Q, LIANG JH, ZHANG TH, JIANG JL
  • 作者关键词:  
  • 出版物名称:   RSC ADVANCES
  • ISSN:   2046-2069
  • 通讯作者地址:   Southwest Univ Sci Technol
  • 被引频次:   4
  • DOI:   10.1039/c8ra04143a
  • 出版年:   2018

▎ 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.