Adsorption of Quaternized-chitosan-modified Reduced Graphene Oxide

  • Chuanhang Guo (郭传航)
  • Mingyang Liu (刘明阳)
  • Yuanling Xia
  • Xiaoqiang Fan
  • Yanjun Chen (陈艳军)Email author
  • Chaocan Zhang
Organic Materials


A novel quaternized-chitosan-modified reduced graphene oxide (HACC-RGO) combined the adsorption advantages of RGO and 2-Hydroxypropyltrimethyl ammonium chloride chitosan (HACC). The adsorption property of HACC-RGO sheets for methyl orange (MO) was demonstrated and compared with RGO and HACC. The removal ratios of HACC-RGO sheets reached 92.6% for MO after a 24 h adsorption. The adsorption kinetics, isotherms and thermodynamics were investigated to indicate that the kinetics and equilibrium adsorptions were well-described by pseudo-second-order kinetic and Freundlich isotherm model, respectively. The thermodynamic parameters suggested that the adsorption process was spontaneous and endothermic in nature. Moreover, monodisperse HACC-RGO/CS beads were fabricated by the microfluidic method. The adsorption and desorption of HACC-RGO/CS beads for MO were studied. After three adsorption-desorption cycles, the adsorption capacity remained above 55% and the desorption capacity was not below 70%. The HACC-RGO/CS beads can be reused and have great potential applications in removing organic dyes from polluted water.

Key words

reduced graphene oxide chitosan adsorption adsorption kinetic 


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Copyright information

© Wuhan University of Technology and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Chuanhang Guo (郭传航)
    • 1
  • Mingyang Liu (刘明阳)
    • 1
  • Yuanling Xia
    • 1
  • Xiaoqiang Fan
    • 1
  • Yanjun Chen (陈艳军)
    • 1
    Email author
  • Chaocan Zhang
    • 1
  1. 1.School of Material Science and EngineeringWuhan University of TechnologyWuhanChina

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