Selectivity of heavy metal ions at acidic supramolecular surfaces

Jin Young Hyun; Gil Sun Lee; Tae Young Kim; Dong June Ahn

doi:10.1007/BF02706606

Selectivity of heavy metal ions at acidic supramolecular surfaces

Jin Young Hyun, Gil Sun Lee, Tae Young Kim, Dong June Ahn

Department of Chemical and Biological Engineering

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

11 Citations (Scopus)

Abstract

Langmuir monolayers containing surface carboxylic acid head groups were examined in order to characterize their selectivity to metal ion adsorption. Experimental data of ion adsorption obtained by surface isotherms and FTIR spectroscopy were analyzed using a thermodynamic-and-electrochemical model. Among bivalent ions examined (Cr²⁺, Pb²⁺, Cu²⁺, Cd²⁺, Zn²⁺, Ca²⁺, Ni²⁺, and Ba²⁺), Langmuir monolayers showed the highest selectivity to chromium ions. In addition, it was found that adsorption constants of the surface ions are quite different from binding constants of the bulk ions. The results show important implications to sensing and separating metal ions by the use of acidic supramolecular materials.

Original language	English
Pages (from-to)	533-540
Number of pages	8
Journal	Korean Journal of Chemical Engineering
Volume	14
Issue number	6
DOIs	https://doi.org/10.1007/BF02706606
Publication status	Published - 1997 Nov

Keywords

FTIR Spectroscopy
Interfaces
Langmuir Monolayers
Metal Ion Adsorption
Supramolecules

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)

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10.1007/BF02706606

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title = "Selectivity of heavy metal ions at acidic supramolecular surfaces",

abstract = "Langmuir monolayers containing surface carboxylic acid head groups were examined in order to characterize their selectivity to metal ion adsorption. Experimental data of ion adsorption obtained by surface isotherms and FTIR spectroscopy were analyzed using a thermodynamic-and-electrochemical model. Among bivalent ions examined (Cr2+, Pb2+, Cu2+, Cd2+, Zn2+, Ca2+, Ni2+, and Ba2+), Langmuir monolayers showed the highest selectivity to chromium ions. In addition, it was found that adsorption constants of the surface ions are quite different from binding constants of the bulk ions. The results show important implications to sensing and separating metal ions by the use of acidic supramolecular materials.",

keywords = "FTIR Spectroscopy, Interfaces, Langmuir Monolayers, Metal Ion Adsorption, Supramolecules",

author = "Hyun, {Jin Young} and Lee, {Gil Sun} and Kim, {Tae Young} and Ahn, {Dong June}",

note = "Funding Information: This work was supported by Korean Ministry of Educa-",

year = "1997",

month = nov,

doi = "10.1007/BF02706606",

language = "English",

volume = "14",

pages = "533--540",

journal = "Korean Journal of Chemical Engineering",

issn = "0256-1115",

publisher = "Springer New York",

number = "6",

}

TY - JOUR

T1 - Selectivity of heavy metal ions at acidic supramolecular surfaces

AU - Hyun, Jin Young

AU - Lee, Gil Sun

AU - Kim, Tae Young

AU - Ahn, Dong June

N1 - Funding Information: This work was supported by Korean Ministry of Educa-

PY - 1997/11

Y1 - 1997/11

N2 - Langmuir monolayers containing surface carboxylic acid head groups were examined in order to characterize their selectivity to metal ion adsorption. Experimental data of ion adsorption obtained by surface isotherms and FTIR spectroscopy were analyzed using a thermodynamic-and-electrochemical model. Among bivalent ions examined (Cr2+, Pb2+, Cu2+, Cd2+, Zn2+, Ca2+, Ni2+, and Ba2+), Langmuir monolayers showed the highest selectivity to chromium ions. In addition, it was found that adsorption constants of the surface ions are quite different from binding constants of the bulk ions. The results show important implications to sensing and separating metal ions by the use of acidic supramolecular materials.

AB - Langmuir monolayers containing surface carboxylic acid head groups were examined in order to characterize their selectivity to metal ion adsorption. Experimental data of ion adsorption obtained by surface isotherms and FTIR spectroscopy were analyzed using a thermodynamic-and-electrochemical model. Among bivalent ions examined (Cr2+, Pb2+, Cu2+, Cd2+, Zn2+, Ca2+, Ni2+, and Ba2+), Langmuir monolayers showed the highest selectivity to chromium ions. In addition, it was found that adsorption constants of the surface ions are quite different from binding constants of the bulk ions. The results show important implications to sensing and separating metal ions by the use of acidic supramolecular materials.

KW - FTIR Spectroscopy

KW - Interfaces

KW - Langmuir Monolayers

KW - Metal Ion Adsorption

KW - Supramolecules

UR - http://www.scopus.com/inward/record.url?scp=0345855327&partnerID=8YFLogxK

U2 - 10.1007/BF02706606

DO - 10.1007/BF02706606

M3 - Article

AN - SCOPUS:0345855327

SN - 0256-1115

VL - 14

SP - 533

EP - 540

JO - Korean Journal of Chemical Engineering

JF - Korean Journal of Chemical Engineering

IS - 6

ER -

Selectivity of heavy metal ions at acidic supramolecular surfaces

Abstract

Keywords

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