Fabrication of reduced graphene oxide decorated with CuS nanoparticles and its activity toward the adsorption of methylene blue

Authors

  • Fatima Tuz Johra School of Materials Science and Engineering, Kookmin University 77 Jeongneung-ro, Seongbuk-gu, Seoul 02707
  • Woo-Gwang Jung School of Materials Science and Engineering, Kookmin University 77 Jeongneung-ro, Seongbuk-gu, Seoul 02707

DOI:

https://doi.org/10.2298/JSC170810117T

Keywords:

reduced graphene oxide, copper sulfide, adsorption, kinetics, methylene blue

Abstract

Reduced graphene oxide (RGO) can act as an adsorbent because of its high surface area. Adsorptive characteristics are studied quantitatively on the RGO composite combined with CuS. The removal efficiency of methylene blue is found to be about 85%, which is higher than that of bare CuS (~73%). Further, the kinetics of adsorption of methylene blue was also inspected to determine the rate of the process. The removal process is faster with the RGO-CuS system than with bare CuS. Both high and low temperatures are not favorable for this adsorption process. In highly ionic media of high or low pH, the adsorption is greater than in media of neutral pH. Thermodynamic parameters were calculated in this work, which suggest that this is physisorption and exothermic in nature.

Author Biographies

Fatima Tuz Johra, School of Materials Science and Engineering, Kookmin University 77 Jeongneung-ro, Seongbuk-gu, Seoul 02707

School of Materials Science and Engineering

 

Woo-Gwang Jung, School of Materials Science and Engineering, Kookmin University 77 Jeongneung-ro, Seongbuk-gu, Seoul 02707

School of Materials Science and Engineering

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Published

2018-04-30

How to Cite

[1]
F. T. Johra and W.-G. Jung, “Fabrication of reduced graphene oxide decorated with CuS nanoparticles and its activity toward the adsorption of methylene blue”, J. Serb. Chem. Soc., vol. 83, no. 4, pp. 503-513, Apr. 2018.

Issue

Section

Environmental Chemistry