화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.25, 35-41, May, 2015
DOI10.1016/j.jiec.2014.10.010  Export Citation
Removal of Pb(II) from aqueous solution using ethylene diamine tetra acetic acid-Zr(IV) iodate composite cation exchanger: Kinetics, isotherms and thermodynamic studies
M. Naushad†, Z.A. ALOthman, Inamuddin1, and H. Javadian2
  • Department of Chemistry, College of Science, Bld#5, King Saud University, Riyadh, Saudi Arabia
  • 1Department of Applied Chemistry, Faculty of Engineering and Technology, Aligarh Muslim University, Aligarh 202002, India
  • 2Department of Chemical Engineering, Shahrood Branch, Islamic Azad University, Shahrood, Iran
E-mail:
EDTA-Zr(IV) iodate was prepared via the incorporation of aqueous solution of EDTA into the inorganic precipitate of Zr(IV) iodate. Distribution coefficient values for different metals showed that EDTA-Zr(IV) iodate had the highest adsorption capacity for Pb(II). The practical applicability of EDTA-Zr(IV) iodate was explored by separating Pb(II) metal from a synthetic mixture of metal ions. Dependence of adsorption on contact time, pH of the solution, exchanger dose and temperature was studied to achieve the optimum conditions. Kinetic studies showed better applicability for pseudo-second-order model. Thermodynamic parameters viz. - entropy change, enthalpy change and Gibb's free energy change were also calculated.
Keywords:EDTA-Zr(IV) iodate;Pb(II) metal;Selective separation;Kinetics;Thermodynamic
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