Journal of Central South University

, Volume 21, Issue 7, pp 2826–2831 | Cite as

Adsorption behavior of cross-linked chitosan modified by graphene oxide for Cu(II) removal

  • Yan Yang (杨焰)
  • Wen-qin Wu (武文琴)
  • Hai-hui Zhou (周海晖)
  • Zhong-yuan Huang (黄中原)
  • Ting-ting Ye (叶婷婷)
  • Rui Liu (刘瑞)
  • Ya-fei Kuang (旷亚非)


Cross-linked chitosan(CS), cross-linked chitosan/graphene(CS/RGO10) and cross-linked chitosan/graphene oxide(CS/GO10) were prepared as adsorbents for Cu(II). The effects of pH, contact time, adsorbent dosage and initial concentration of Cu(II) on the adsorbing abilities of CS,CS/RGO10 and CS/GO10 to Cu(II) were investigated. The results demonstrate that the adsorption capacities of CS/GO10 and CS/RGO10 are greater than that of CS, especially at pH 5.0 and the adsorption capacities are 202.5, 150 and 137.5 mg/g, respectively. Their behaviors obey the Freundlich isotherm model very well. Additionally, CS/GO10 has the shortest time to achieve adsorption equilibrium among them and can be used as a perspective adsorbent for Cu(II).

Key words

chitosan graphene oxide adsorption Cu(II) 


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Copyright information

© Central South University Press and Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Yan Yang (杨焰)
    • 1
    • 2
  • Wen-qin Wu (武文琴)
    • 1
  • Hai-hui Zhou (周海晖)
    • 1
  • Zhong-yuan Huang (黄中原)
    • 1
  • Ting-ting Ye (叶婷婷)
    • 1
  • Rui Liu (刘瑞)
    • 1
  • Ya-fei Kuang (旷亚非)
    • 1
  1. 1.College of Chemistry and Chemical EngineeringHunan UniversityChangshaChina
  2. 2.College of Materials Science and EngineeringCentral South University of Forestry and TechnologyChangshaChina

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