Removal of zinc and cadmium ions using a cross-linked polyaminophosphonate

Othman Charles S. Al Hamouz; Shaikh A. Ali

doi:10.1080/10601325.2013.768110

Removal of zinc and cadmium ions using a cross-linked polyaminophosphonate

Othman Charles S. Al Hamouz
, Shaikh A. Ali^*

^*Corresponding author for this work

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

10 Scopus citations

Abstract

A cross-linked polyzwitterionic acid (CPZA) containing aminophosphonic acid motifs was synthesized via cyclocopolymerization of diallylaminomethylphosphonic acid and cross-linker 1,1,4,4- tetraallylpiperazinium dichloride (10 mol%) using tertbutylhydroperoxide as the initiator. The CPZA upon treatment with NaOH was converted to a cross-linked anionic polyelectrolyte (CAPE 5). The adsorption of Zn²⁺ and Cd ²⁺ on CAPE 5 showed that the experimental data fit the Lagergren second-order kinetic model and Langmuir, as well as Freundlich isotherm models. The adsorption capacity of Zn²⁺ was found to be higher than that of Cd²⁺, and the adsorption process was spontaneous and endothermic in nature. The low activation energy of 11.3 and 9.3 kJ/mol for Zn²⁺ and Cd²⁺, respectively indicated the adsorptions as a favorable process. The resin demonstrated excellent adsorption efficiency in removing the metal ions from aqueous solution.

Original language	English
Pages (from-to)	375-384
Number of pages	10
Journal	Journal of Macromolecular Science, Part A: Pure and Applied Chemistry
Volume	50
Issue number	4
DOIs	https://doi.org/10.1080/10601325.2013.768110
State	Published - 2013

Keywords

Adsorption
Cross-linked polyaminophosphonate
Heavy metal ions

ASJC Scopus subject areas

Ceramics and Composites
General Chemistry
Polymers and Plastics
Materials Chemistry

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10.1080/10601325.2013.768110

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title = "Removal of zinc and cadmium ions using a cross-linked polyaminophosphonate",

abstract = "A cross-linked polyzwitterionic acid (CPZA) containing aminophosphonic acid motifs was synthesized via cyclocopolymerization of diallylaminomethylphosphonic acid and cross-linker 1,1,4,4- tetraallylpiperazinium dichloride (10 mol\%) using tertbutylhydroperoxide as the initiator. The CPZA upon treatment with NaOH was converted to a cross-linked anionic polyelectrolyte (CAPE 5). The adsorption of Zn2+ and Cd 2+ on CAPE 5 showed that the experimental data fit the Lagergren second-order kinetic model and Langmuir, as well as Freundlich isotherm models. The adsorption capacity of Zn2+ was found to be higher than that of Cd2+, and the adsorption process was spontaneous and endothermic in nature. The low activation energy of 11.3 and 9.3 kJ/mol for Zn2+ and Cd2+, respectively indicated the adsorptions as a favorable process. The resin demonstrated excellent adsorption efficiency in removing the metal ions from aqueous solution.",

keywords = "Adsorption, Cross-linked polyaminophosphonate, Heavy metal ions",

author = "\{Al Hamouz\}, \{Othman Charles S.\} and Ali, \{Shaikh A.\}",

year = "2013",

doi = "10.1080/10601325.2013.768110",

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pages = "375--384",

journal = "Journal of Macromolecular Science, Part A: Pure and Applied Chemistry",

issn = "1060-1325",

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T1 - Removal of zinc and cadmium ions using a cross-linked polyaminophosphonate

AU - Al Hamouz, Othman Charles S.

AU - Ali, Shaikh A.

PY - 2013

Y1 - 2013

N2 - A cross-linked polyzwitterionic acid (CPZA) containing aminophosphonic acid motifs was synthesized via cyclocopolymerization of diallylaminomethylphosphonic acid and cross-linker 1,1,4,4- tetraallylpiperazinium dichloride (10 mol%) using tertbutylhydroperoxide as the initiator. The CPZA upon treatment with NaOH was converted to a cross-linked anionic polyelectrolyte (CAPE 5). The adsorption of Zn2+ and Cd 2+ on CAPE 5 showed that the experimental data fit the Lagergren second-order kinetic model and Langmuir, as well as Freundlich isotherm models. The adsorption capacity of Zn2+ was found to be higher than that of Cd2+, and the adsorption process was spontaneous and endothermic in nature. The low activation energy of 11.3 and 9.3 kJ/mol for Zn2+ and Cd2+, respectively indicated the adsorptions as a favorable process. The resin demonstrated excellent adsorption efficiency in removing the metal ions from aqueous solution.

AB - A cross-linked polyzwitterionic acid (CPZA) containing aminophosphonic acid motifs was synthesized via cyclocopolymerization of diallylaminomethylphosphonic acid and cross-linker 1,1,4,4- tetraallylpiperazinium dichloride (10 mol%) using tertbutylhydroperoxide as the initiator. The CPZA upon treatment with NaOH was converted to a cross-linked anionic polyelectrolyte (CAPE 5). The adsorption of Zn2+ and Cd 2+ on CAPE 5 showed that the experimental data fit the Lagergren second-order kinetic model and Langmuir, as well as Freundlich isotherm models. The adsorption capacity of Zn2+ was found to be higher than that of Cd2+, and the adsorption process was spontaneous and endothermic in nature. The low activation energy of 11.3 and 9.3 kJ/mol for Zn2+ and Cd2+, respectively indicated the adsorptions as a favorable process. The resin demonstrated excellent adsorption efficiency in removing the metal ions from aqueous solution.

KW - Adsorption

KW - Cross-linked polyaminophosphonate

KW - Heavy metal ions

UR - https://www.scopus.com/pages/publications/84876358814

U2 - 10.1080/10601325.2013.768110

DO - 10.1080/10601325.2013.768110

M3 - Article

AN - SCOPUS:84876358814

SN - 1060-1325

VL - 50

SP - 375

EP - 384

JO - Journal of Macromolecular Science, Part A: Pure and Applied Chemistry

JF - Journal of Macromolecular Science, Part A: Pure and Applied Chemistry

IS - 4

ER -

Removal of zinc and cadmium ions using a cross-linked polyaminophosphonate

Abstract

Keywords

ASJC Scopus subject areas

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