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Jeyakumar, R P Suresh, Chandrasekaran, V. (1392). Adsorption of lead(II) ions by activated carbons prepared from marine green algae: Equilibrium and kinetics studies. نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 5(1), 15-24. doi: https://doi.org/10.1186/2228-5547-5-2
R P Suresh Jeyakumar; V Chandrasekaran. "Adsorption of lead(II) ions by activated carbons prepared from marine green algae: Equilibrium and kinetics studies". نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 5, 1, 1392, 15-24. doi: https://doi.org/10.1186/2228-5547-5-2
Jeyakumar, R P Suresh, Chandrasekaran, V. (1392). 'Adsorption of lead(II) ions by activated carbons prepared from marine green algae: Equilibrium and kinetics studies', نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 5(1), pp. 15-24. doi: https://doi.org/10.1186/2228-5547-5-2
Jeyakumar, R P Suresh, Chandrasekaran, V. Adsorption of lead(II) ions by activated carbons prepared from marine green algae: Equilibrium and kinetics studies. نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 1392; 5(1): 15-24. doi: https://doi.org/10.1186/2228-5547-5-2

Adsorption of lead(II) ions by activated carbons prepared from marine green algae: Equilibrium and kinetics studies

International Journal of Industrial Chemistry
دوره 5، شماره 1، خرداد 2014، صفحه 15-24
نوع مقاله: research article
شناسه دیجیتال (DOI): https://doi.org/10.1186/2228-5547-5-2
نویسندگان
R P Suresh Jeyakumar* 1؛ V Chandrasekaran2
1Department of Chemistry, Karpagam University, Coimbatore, 641021, India
2Department of Chemistry, Govt. Arts College (Autonomous), Salem, 636 007, India
چکیده
Background
Adsorption of lead (II) ions onto activated carbons prepared from the marine green Ulva fasciata sp. (CCUC, SSUC and SCUC)and commercially activated carbon (CAC) was investigated with the variation in the parameters of pH, contact time, lead (II) ions concentration and the adsorbent dose. The Langmuir, Freundlich and Temkin models have been applied.
Results
Results showed that the adsorption process was better described by the Langmuir model. Adsorption kinetics data obtained for the metal ions sorption were investigated using reversible first order, pseudo-first order, pseudo-second order and intraparticle diffusion model. The maximum adsorption capacities (Q0) were 22.93mg/g for CCUC, 24.15mg/g for SSUC, 23.47 mg/g for SSUC and15.62 mg/g for CAC.
Conclusions
It was found that the kinetics data fitted well into the pseudo second-order kinetics and SSUC is a superior adsorbent for the removal of Pb(II) ions from aqueous solution.
کلیدواژه‌ها
Green algae؛ Adsorption؛ Contact time؛ Temkin؛ Pseudo-first order
آمار
تعداد مشاهده مقاله: 38


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