کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
691147 1460429 2014 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Characteristics of thermodynamic, isotherm, kinetic, mechanism and design equations for the analysis of adsorption in Cd(II) ions-surface modified Eucalyptus seeds system
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
Characteristics of thermodynamic, isotherm, kinetic, mechanism and design equations for the analysis of adsorption in Cd(II) ions-surface modified Eucalyptus seeds system
چکیده انگلیسی
The adsorption of Cd(II) ions from synthetic wastewater was performed using two types of newly prepared adsorbent: (i). Surface modified Eucalyptus seeds by sulphuric acid (SMES-S) and (ii). Surface modified Eucalyptus seeds by hydrochloric acid (SMES-H). SMES-S showed better performance for the Cd(II) ions removal than the SMES-H. The thermodynamics of the Cd(II) ions-SMES system was feasible, spontaneous and exothermic in nature. The maximum monolayer adsorption capacities of the adsorbents were found to be 71.15 mg/g (SMES-S) and 64.16 mg/g (SMES-H). The kinetics of the system followed the pseudo-second order kinetic model. The effective diffusivity values were calculated for the SMES-S: 2.0578 × 10−11, 2.2641 × 10−11, 2.3382 × 10−11, 2.5022 × 10−11 and 2.5445 × 10−11 m2/s for the initial Cd(II) ions concentration from 20 to 100 mg/L, respectively. The SMES-S can be used as an effective adsorbent for the removal of Cd(II) ions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the Taiwan Institute of Chemical Engineers - Volume 45, Issue 6, November 2014, Pages 2957-2968
نویسندگان
, , , ,