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Korean Carbon Society (한국탄소학회)
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Study on effect of chemical impregnation on the surface and porous characteristics of activated carbon fabric prepared from viscose rayon

  • Bhati, Surendra (Department of Chemistry, Government Narmada P.G. College) ;
  • Mahur, J.S. (Department of Chemistry, Government Narmada P.G. College) ;
  • Dixit, Savita (Department of Chemistry, Maulana Azad National Institute of Technology) ;
  • Chobey, O.N. (Department of Chemistry, Government Narmada P.G. College)
  • Received : 2013.09.29
  • Accepted : 2013.12.28
  • Published : 2014.01.31
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Abstract

In this study, synthetic viscose rayon fabric has been used for preparing activated carbon fabric (ACF), impregnated with different concentrations of $H_3PO_4$. The effect of $H_3PO_4$ impregnation on the weight yield, surface area, pore volume, chemical composition and morphology of ACF were studied. Experimental results revealed that both Brunauer-Emmett-Teller surface area and micropore volume increased with increasing $H_3PO_4$ concentration; however, the weight yield and microporosity (%) decreased. It was observed that samples impregnated at $70^{\circ}C$ (AC-70) give higher yield and higher microporosity as compared to $30^{\circ}C$ (AC-30). The average pore size of the ACF also gradually increases from 18.2 to 19 and 16.7 to $20.4{\AA}$ for $30^{\circ}C$ and $70^{\circ}C$, respectively. The pore size distribution of ACF was also studied. It is also concluded that the final ACF strength is dependent on the concentration of impregnant.

Keywords

References

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