Selective removal of heavy metal ions by disulfide linked polymer networks

Dongah Ko; Joo Sung Lee; Hasmukh A. Patel; Mogens H. Jakobsen; Yuhoon Hwang; Cafer T. Yavuz; Hans Chr. Bruun Hansen; Henrik R. Andersen

doi:10.1016/j.jhazmat.2017.03.007

Selective removal of heavy metal ions by disulfide linked polymer networks

Dongah Ko, Joo Sung Lee, Hasmukh A. Patel, Mogens H. Jakobsen, Yuhoon Hwang, Cafer T. Yavuz, Hans Chr. Bruun Hansen, Henrik R. Andersen^*

^*Corresponding author for this work

Section for Environmental Chemistry and Physics

60 Citations (Scopus)

Abstract

Heavy metal contaminated surface water is one of the oldest pollution problems, which is critical to ecosystems and human health. We devised disulfide linked polymer networks and employed as a sorbent for removing heavy metal ions from contaminated water. Although the polymer network material has a moderate surface area, it demonstrated cadmium removal efficiency equivalent to highly porous activated carbon while it showed 16 times faster sorption kinetics compared to activated carbon, owing to the high affinity of cadmium towards disulfide and thiol functionality in the polymer network. The metal sorption mechanism on polymer network was studied by sorption kinetics, effect of pH, and metal complexation. We observed that the metal ions–copper, cadmium, and zinc showed high binding affinity in polymer network, even in the presence of competing cations like calcium in water.

Original language	English
Journal	Journal of Hazardous Materials
Volume	332
Pages (from-to)	140-148
Number of pages	9
ISSN	0304-3894
DOIs	https://doi.org/10.1016/j.jhazmat.2017.03.007
Publication status	Published - 2017

Keywords

Heavy metals ion removal
Polymer network
Selective removal
Sulfur functionality
Wastewater treatment

UN SDGs

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

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10.1016/j.jhazmat.2017.03.007

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title = "Selective removal of heavy metal ions by disulfide linked polymer networks",

abstract = "Heavy metal contaminated surface water is one of the oldest pollution problems, which is critical to ecosystems and human health. We devised disulfide linked polymer networks and employed as a sorbent for removing heavy metal ions from contaminated water. Although the polymer network material has a moderate surface area, it demonstrated cadmium removal efficiency equivalent to highly porous activated carbon while it showed 16 times faster sorption kinetics compared to activated carbon, owing to the high affinity of cadmium towards disulfide and thiol functionality in the polymer network. The metal sorption mechanism on polymer network was studied by sorption kinetics, effect of pH, and metal complexation. We observed that the metal ions–copper, cadmium, and zinc showed high binding affinity in polymer network, even in the presence of competing cations like calcium in water.",

keywords = "Heavy metals ion removal, Polymer network, Selective removal, Sulfur functionality, Wastewater treatment",

author = "Dongah Ko and Lee, {Joo Sung} and Patel, {Hasmukh A.} and Jakobsen, {Mogens H.} and Yuhoon Hwang and Yavuz, {Cafer T.} and Hansen, {Hans Chr. Bruun} and Andersen, {Henrik R.}",

year = "2017",

doi = "10.1016/j.jhazmat.2017.03.007",

language = "English",

volume = "332",

pages = "140--148",

journal = "Journal of Hazardous Materials",

issn = "0304-3894",

publisher = "Elsevier",

}

TY - JOUR

T1 - Selective removal of heavy metal ions by disulfide linked polymer networks

AU - Ko, Dongah

AU - Lee, Joo Sung

AU - Patel, Hasmukh A.

AU - Jakobsen, Mogens H.

AU - Hwang, Yuhoon

AU - Yavuz, Cafer T.

AU - Hansen, Hans Chr. Bruun

AU - Andersen, Henrik R.

PY - 2017

Y1 - 2017

N2 - Heavy metal contaminated surface water is one of the oldest pollution problems, which is critical to ecosystems and human health. We devised disulfide linked polymer networks and employed as a sorbent for removing heavy metal ions from contaminated water. Although the polymer network material has a moderate surface area, it demonstrated cadmium removal efficiency equivalent to highly porous activated carbon while it showed 16 times faster sorption kinetics compared to activated carbon, owing to the high affinity of cadmium towards disulfide and thiol functionality in the polymer network. The metal sorption mechanism on polymer network was studied by sorption kinetics, effect of pH, and metal complexation. We observed that the metal ions–copper, cadmium, and zinc showed high binding affinity in polymer network, even in the presence of competing cations like calcium in water.

AB - Heavy metal contaminated surface water is one of the oldest pollution problems, which is critical to ecosystems and human health. We devised disulfide linked polymer networks and employed as a sorbent for removing heavy metal ions from contaminated water. Although the polymer network material has a moderate surface area, it demonstrated cadmium removal efficiency equivalent to highly porous activated carbon while it showed 16 times faster sorption kinetics compared to activated carbon, owing to the high affinity of cadmium towards disulfide and thiol functionality in the polymer network. The metal sorption mechanism on polymer network was studied by sorption kinetics, effect of pH, and metal complexation. We observed that the metal ions–copper, cadmium, and zinc showed high binding affinity in polymer network, even in the presence of competing cations like calcium in water.

KW - Heavy metals ion removal

KW - Polymer network

KW - Selective removal

KW - Sulfur functionality

KW - Wastewater treatment

U2 - 10.1016/j.jhazmat.2017.03.007

DO - 10.1016/j.jhazmat.2017.03.007

M3 - Journal article

C2 - 28285107

AN - SCOPUS:85015004113

SN - 0304-3894

VL - 332

SP - 140

EP - 148

JO - Journal of Hazardous Materials

JF - Journal of Hazardous Materials

ER -

Selective removal of heavy metal ions by disulfide linked polymer networks

Abstract

Keywords

UN SDGs

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