화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.20, No.2, 454-461, March, 2014
DOI10.1016/j.jiec.2013.05.002  Export Citation
A novel agricultural waste based adsorbent for the removal of Pb(II) from aqueous solution: Kinetics, equilibrium and thermodynamic studies
M. Ghasemi, Mu. Naushad1, †, N. Ghasemi, and Y. Khosravi-fard
  • Department of Chemistry, Science Faculty, Islamic Azad University, Arak Branch, Arak, Iran
  • 1Advanced Materials Research Chair, Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
E-mail:
Fig sawdust was used as a precursor for the production of activated carbon by chemical activation with H3PO4. The developed Fig sawdust activated carbon (FSAC) was used as a biosorbent for the removal of Pb(II) from aqueous solution. Highest adsorption of Pb(II) (95.8%) was found at pH 4. Equilibrium data fitted very well with the Langmuir isotherm model. Maximum adsorption capacity was determined 80.645 mg g^(-1) at pH 4. Kinetic studies demonstrated that the adsorption followed a pseudo second order kinetics model. The negative value of ΔG° confirmed the feasibility and spontaneity of FSAC for Pb(II) adsorption.
Keywords:Fig sawdust activated carbon;Adsorption isotherms;Kinetics;Breakthrough capacity
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