Vanadium (V) adsorption isotherms and kinetics using polypyrrole coated magnetized natural zeolite

Nomcebo H. Mthombeni, Sandrine Mbakop, Aoyi Ochieng, Maurice S. Onyango

Research output: Contribution to journalArticle

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Abstract

Magnetized natural zeolite-polypyrrole (MZ-PPY) composite as a potential adsorbent for vanadium was prepared via polymerization of pyrrole monomer using FeCl3 oxidant in aqueous medium in which magnetized natural zeolite particles were suspended. The MZ-PPY composite was characterized by attenuated total reflectance Fourier transform infrared spectroscope (ATR-FTIR), field emission scanning electron microscope (FE-SEM) and high resolution transmission electron microscope (HR-TEM). Batch adsorption studies were performed to test the ability of the adsorbent to remove V(V) ions from aqueous solution. From sorption equilibrium modelling, the equilibrium data is well described by Langmuir, Sips and Redlich–Peterson isotherms while the adsorption kinetics is described by the pseudo-second order model. The Langmuir adsorption capacity is 65.0 mg/g at 298 K. Thermodynamic parameters confirm the spontaneous and endothermic nature of the vanadium adsorption process. Meanwhile V(V) removal process is found not to be affected by co-existing ions. Furthermore, the material can be used in two adsorption cycles without compromising its capacity.
Original languageEnglish
Pages (from-to)172-180
Number of pages9
JournalJournal of the Taiwan Institute of Chemical Engineers
Volume66
DOIs
Publication statusPublished - 2016

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Zeolites
Vanadium
Polypyrroles
Adsorption isotherms
Adsorption
Kinetics
Adsorbents
Electron microscopes
Ions
Pyrroles
Composite materials
Oxidants
Field emission
Isotherms
Sorption
Fourier transforms
Monomers
Polymerization
polypyrrole
Thermodynamics

Cite this

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title = "Vanadium (V) adsorption isotherms and kinetics using polypyrrole coated magnetized natural zeolite",
abstract = "Magnetized natural zeolite-polypyrrole (MZ-PPY) composite as a potential adsorbent for vanadium was prepared via polymerization of pyrrole monomer using FeCl3 oxidant in aqueous medium in which magnetized natural zeolite particles were suspended. The MZ-PPY composite was characterized by attenuated total reflectance Fourier transform infrared spectroscope (ATR-FTIR), field emission scanning electron microscope (FE-SEM) and high resolution transmission electron microscope (HR-TEM). Batch adsorption studies were performed to test the ability of the adsorbent to remove V(V) ions from aqueous solution. From sorption equilibrium modelling, the equilibrium data is well described by Langmuir, Sips and Redlich–Peterson isotherms while the adsorption kinetics is described by the pseudo-second order model. The Langmuir adsorption capacity is 65.0 mg/g at 298 K. Thermodynamic parameters confirm the spontaneous and endothermic nature of the vanadium adsorption process. Meanwhile V(V) removal process is found not to be affected by co-existing ions. Furthermore, the material can be used in two adsorption cycles without compromising its capacity.",
author = "Mthombeni, {Nomcebo H.} and Sandrine Mbakop and Aoyi Ochieng and Onyango, {Maurice S.}",
year = "2016",
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language = "English",
volume = "66",
pages = "172--180",
journal = "Journal of the Taiwan Institute of Chemical Engineers",
issn = "1876-1070",
publisher = "Taiwan Institute of Chemical Engineers",

}

Vanadium (V) adsorption isotherms and kinetics using polypyrrole coated magnetized natural zeolite. / Mthombeni, Nomcebo H.; Mbakop, Sandrine; Ochieng, Aoyi; Onyango, Maurice S.

In: Journal of the Taiwan Institute of Chemical Engineers, Vol. 66, 2016, p. 172-180.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Vanadium (V) adsorption isotherms and kinetics using polypyrrole coated magnetized natural zeolite

AU - Mthombeni, Nomcebo H.

AU - Mbakop, Sandrine

AU - Ochieng, Aoyi

AU - Onyango, Maurice S.

PY - 2016

Y1 - 2016

N2 - Magnetized natural zeolite-polypyrrole (MZ-PPY) composite as a potential adsorbent for vanadium was prepared via polymerization of pyrrole monomer using FeCl3 oxidant in aqueous medium in which magnetized natural zeolite particles were suspended. The MZ-PPY composite was characterized by attenuated total reflectance Fourier transform infrared spectroscope (ATR-FTIR), field emission scanning electron microscope (FE-SEM) and high resolution transmission electron microscope (HR-TEM). Batch adsorption studies were performed to test the ability of the adsorbent to remove V(V) ions from aqueous solution. From sorption equilibrium modelling, the equilibrium data is well described by Langmuir, Sips and Redlich–Peterson isotherms while the adsorption kinetics is described by the pseudo-second order model. The Langmuir adsorption capacity is 65.0 mg/g at 298 K. Thermodynamic parameters confirm the spontaneous and endothermic nature of the vanadium adsorption process. Meanwhile V(V) removal process is found not to be affected by co-existing ions. Furthermore, the material can be used in two adsorption cycles without compromising its capacity.

AB - Magnetized natural zeolite-polypyrrole (MZ-PPY) composite as a potential adsorbent for vanadium was prepared via polymerization of pyrrole monomer using FeCl3 oxidant in aqueous medium in which magnetized natural zeolite particles were suspended. The MZ-PPY composite was characterized by attenuated total reflectance Fourier transform infrared spectroscope (ATR-FTIR), field emission scanning electron microscope (FE-SEM) and high resolution transmission electron microscope (HR-TEM). Batch adsorption studies were performed to test the ability of the adsorbent to remove V(V) ions from aqueous solution. From sorption equilibrium modelling, the equilibrium data is well described by Langmuir, Sips and Redlich–Peterson isotherms while the adsorption kinetics is described by the pseudo-second order model. The Langmuir adsorption capacity is 65.0 mg/g at 298 K. Thermodynamic parameters confirm the spontaneous and endothermic nature of the vanadium adsorption process. Meanwhile V(V) removal process is found not to be affected by co-existing ions. Furthermore, the material can be used in two adsorption cycles without compromising its capacity.

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JO - Journal of the Taiwan Institute of Chemical Engineers

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