Evaluation of optimum adsorption conditions for Ni (II) and Cd (II) removal from aqueous solution by modified plantain peels (MPP)

The most ideal conditions for the adsorption of Ni (II) and Cd (II) ions onto modified plantain peel (MPP) from aqueous solution were investigated. The effects of three adsorption variables (pH, MPP dose and initial adsorbate concentration) were studied using central composite design (CCD), a subset...

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Main Authors: Zaharaddeen N. Garba, Nkole I. Ugbaga, Amina K. Abdullahi
Format: Article
Language:English
Published: SpringerOpen 2016-06-01
Series:Beni-Suef University Journal of Basic and Applied Sciences
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2314853516300142
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author Zaharaddeen N. Garba
Nkole I. Ugbaga
Amina K. Abdullahi
author_facet Zaharaddeen N. Garba
Nkole I. Ugbaga
Amina K. Abdullahi
author_sort Zaharaddeen N. Garba
collection DOAJ
description The most ideal conditions for the adsorption of Ni (II) and Cd (II) ions onto modified plantain peel (MPP) from aqueous solution were investigated. The effects of three adsorption variables (pH, MPP dose and initial adsorbate concentration) were studied using central composite design (CCD), a subset of response surface methodology (RSM). Quadratic models were developed for both Ni (II) and Cd (II) percentage removals. The prime adsorption conditions obtained were pH of 4.36, MPP dose of 0.82 g and initial concentration of 120 mg/L with desirability of 1.00 which gave good monolayer adsorption capacities of 77.52 and 70.92 mg/g for Ni (II) and Cd (II) respectively. The adsorption data were modelled using Langmuir and Freundlich adsorption isotherms; the equilibrium adsorption of both Ni (II) and Cd (II) on MPP obeyed Langmuir model, and pseudo-second-order kinetics was the order that best described the two adsorption processes.
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spelling doaj.art-893deefc46c24ae1ae5aa8f5131666382022-12-21T18:24:48ZengSpringerOpenBeni-Suef University Journal of Basic and Applied Sciences2314-85352016-06-015217017910.1016/j.bjbas.2016.03.001Evaluation of optimum adsorption conditions for Ni (II) and Cd (II) removal from aqueous solution by modified plantain peels (MPP)Zaharaddeen N. Garba0Nkole I. Ugbaga1Amina K. Abdullahi2School of Chemical Sciences, Universiti Sains Malaysia, 11800 Penang, MalaysiaDepartment of Chemistry, Ahmadu Bello University, P.M.B., 1044 Zaria, NigeriaDepartment of Chemistry, Ahmadu Bello University, P.M.B., 1044 Zaria, NigeriaThe most ideal conditions for the adsorption of Ni (II) and Cd (II) ions onto modified plantain peel (MPP) from aqueous solution were investigated. The effects of three adsorption variables (pH, MPP dose and initial adsorbate concentration) were studied using central composite design (CCD), a subset of response surface methodology (RSM). Quadratic models were developed for both Ni (II) and Cd (II) percentage removals. The prime adsorption conditions obtained were pH of 4.36, MPP dose of 0.82 g and initial concentration of 120 mg/L with desirability of 1.00 which gave good monolayer adsorption capacities of 77.52 and 70.92 mg/g for Ni (II) and Cd (II) respectively. The adsorption data were modelled using Langmuir and Freundlich adsorption isotherms; the equilibrium adsorption of both Ni (II) and Cd (II) on MPP obeyed Langmuir model, and pseudo-second-order kinetics was the order that best described the two adsorption processes.http://www.sciencedirect.com/science/article/pii/S2314853516300142Modified plantain peel (MPP)AdsorptionCentral composite design (CCD)Response surface methodology (RSM)Ni (II) and Cd (II)
spellingShingle Zaharaddeen N. Garba
Nkole I. Ugbaga
Amina K. Abdullahi
Evaluation of optimum adsorption conditions for Ni (II) and Cd (II) removal from aqueous solution by modified plantain peels (MPP)
Beni-Suef University Journal of Basic and Applied Sciences
Modified plantain peel (MPP)
Adsorption
Central composite design (CCD)
Response surface methodology (RSM)
Ni (II) and Cd (II)
title Evaluation of optimum adsorption conditions for Ni (II) and Cd (II) removal from aqueous solution by modified plantain peels (MPP)
title_full Evaluation of optimum adsorption conditions for Ni (II) and Cd (II) removal from aqueous solution by modified plantain peels (MPP)
title_fullStr Evaluation of optimum adsorption conditions for Ni (II) and Cd (II) removal from aqueous solution by modified plantain peels (MPP)
title_full_unstemmed Evaluation of optimum adsorption conditions for Ni (II) and Cd (II) removal from aqueous solution by modified plantain peels (MPP)
title_short Evaluation of optimum adsorption conditions for Ni (II) and Cd (II) removal from aqueous solution by modified plantain peels (MPP)
title_sort evaluation of optimum adsorption conditions for ni ii and cd ii removal from aqueous solution by modified plantain peels mpp
topic Modified plantain peel (MPP)
Adsorption
Central composite design (CCD)
Response surface methodology (RSM)
Ni (II) and Cd (II)
url http://www.sciencedirect.com/science/article/pii/S2314853516300142
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