Synthesis of polyamine-CNT composites for the removal of toxic cadmium metal ions from wastewater

Isaiah Olabisi Adelabu; Tawfik A. Saleh; Thomas F. Garrison; Othman Charles S. Al Hamouz

doi:10.1016/j.molliq.2019.111827

Synthesis of polyamine-CNT composites for the removal of toxic cadmium metal ions from wastewater

Isaiah Olabisi Adelabu, Tawfik A. Saleh^*, Thomas F. Garrison, Othman Charles S. Al Hamouz

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

47 Scopus citations

Abstract

This paper investigates the synthesis of melamine-based polyamine polymers covalently bonded to 0.1 wt% multi-walled carbon nanotubes (CNT). The progression in chemical changes to the polymer structure were monitored over time with solid-state ¹³C NMR. The synthesized polymer composites were characterized using Fourier transform infrared spectroscopy, Raman spectroscopy, thermogravimetric analysis, and powder X-ray diffraction. Surface morphology was studied before and after sorption using a scanning electron microscope attached to an energy dispersive X-ray spectroscope. In addition, polymer composites were evaluated for their efficacy in the removal of cadmium (II) ions from aqueous solutions under various controlled conditions including pH, contact time and temperature. The efficiency of the polymer/CNT composite demonstrates its potential as new adsorbents for the removal of toxic cadmium (II) ions from aqueous solutions.

Original language	English
Article number	111827
Journal	Journal of Molecular Liquids
Volume	297
DOIs	https://doi.org/10.1016/j.molliq.2019.111827
State	Published - 1 Jan 2020

Bibliographical note

Publisher Copyright:
© 2019 Elsevier B.V.

Keywords

Cadmium ion removal
Melamine
Polymer/CNT composites
Water treatment

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Spectroscopy
Physical and Theoretical Chemistry
Materials Chemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.molliq.2019.111827

Cite this

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title = "Synthesis of polyamine-CNT composites for the removal of toxic cadmium metal ions from wastewater",

abstract = "This paper investigates the synthesis of melamine-based polyamine polymers covalently bonded to 0.1 wt% multi-walled carbon nanotubes (CNT). The progression in chemical changes to the polymer structure were monitored over time with solid-state 13C NMR. The synthesized polymer composites were characterized using Fourier transform infrared spectroscopy, Raman spectroscopy, thermogravimetric analysis, and powder X-ray diffraction. Surface morphology was studied before and after sorption using a scanning electron microscope attached to an energy dispersive X-ray spectroscope. In addition, polymer composites were evaluated for their efficacy in the removal of cadmium (II) ions from aqueous solutions under various controlled conditions including pH, contact time and temperature. The efficiency of the polymer/CNT composite demonstrates its potential as new adsorbents for the removal of toxic cadmium (II) ions from aqueous solutions.",

keywords = "Cadmium ion removal, Melamine, Polymer/CNT composites, Water treatment",

author = "Adelabu, {Isaiah Olabisi} and Saleh, {Tawfik A.} and Garrison, {Thomas F.} and {Al Hamouz}, {Othman Charles S.}",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2020",

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doi = "10.1016/j.molliq.2019.111827",

language = "English",

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AU - Adelabu, Isaiah Olabisi

AU - Saleh, Tawfik A.

AU - Garrison, Thomas F.

AU - Al Hamouz, Othman Charles S.

PY - 2020/1/1

Y1 - 2020/1/1

N2 - This paper investigates the synthesis of melamine-based polyamine polymers covalently bonded to 0.1 wt% multi-walled carbon nanotubes (CNT). The progression in chemical changes to the polymer structure were monitored over time with solid-state 13C NMR. The synthesized polymer composites were characterized using Fourier transform infrared spectroscopy, Raman spectroscopy, thermogravimetric analysis, and powder X-ray diffraction. Surface morphology was studied before and after sorption using a scanning electron microscope attached to an energy dispersive X-ray spectroscope. In addition, polymer composites were evaluated for their efficacy in the removal of cadmium (II) ions from aqueous solutions under various controlled conditions including pH, contact time and temperature. The efficiency of the polymer/CNT composite demonstrates its potential as new adsorbents for the removal of toxic cadmium (II) ions from aqueous solutions.

AB - This paper investigates the synthesis of melamine-based polyamine polymers covalently bonded to 0.1 wt% multi-walled carbon nanotubes (CNT). The progression in chemical changes to the polymer structure were monitored over time with solid-state 13C NMR. The synthesized polymer composites were characterized using Fourier transform infrared spectroscopy, Raman spectroscopy, thermogravimetric analysis, and powder X-ray diffraction. Surface morphology was studied before and after sorption using a scanning electron microscope attached to an energy dispersive X-ray spectroscope. In addition, polymer composites were evaluated for their efficacy in the removal of cadmium (II) ions from aqueous solutions under various controlled conditions including pH, contact time and temperature. The efficiency of the polymer/CNT composite demonstrates its potential as new adsorbents for the removal of toxic cadmium (II) ions from aqueous solutions.

KW - Cadmium ion removal

KW - Melamine

KW - Polymer/CNT composites

KW - Water treatment

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Synthesis of polyamine-CNT composites for the removal of toxic cadmium metal ions from wastewater

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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