Synthesis and adsorption performance of lead ion-imprinted micro-beads with combination of two functional monomers

Linyan Zhu; Zhiliang Zhu; Ronghua Zhang; Jun Hong; Yanling Qiu

doi:10.1016/S1001-0742(10)60611-0

Synthesis and adsorption performance of lead ion-imprinted micro-beads with combination of two functional monomers

Linyan Zhu, Zhiliang Zhu^*, Ronghua Zhang, Jun Hong, Yanling Qiu

^*Corresponding author for this work

Department of Environmental Science - Environmental chemistry & toxicology

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

Abstract

A novel ion-imprinted polymer, lead ion-imprinted micro-beads with combination of two functional monomers, was synthesized using the W/O/W polymerization method. Two functional monomers, 1,12-dodecanediol-O,O'-diphenyl-phosphonic acid (DDDPA) and 4-vinylpyridine, were used to form a suitable construction with micro-pores fitting the template and recognition sites. The effects of adsorbent dosage, solution pH and the competitive ions on the adsorption and separation efficiency of lead ions were investigated. The lead ion-imprinted micro-beads were efficient for lead ions removal from aqueous solution in a broad pH range (4-9), when the adsorbent dosage was above 0.1 g/L. The adsorption process obeyed the pseudo second-order kinetics model and it only took half an hour to reach the equilibrium. The adsorption isotherm of lead ion was described by the Langmuir model (R ² >0.99) with a maximum adsorption capacity of 116.9 mg/g. In the presence of competitive ions Co ²⁺ and Cd ²⁺, the lead ion-imprinted micro-beads showed a high selectivity for lead ions. The selectivity coefficient of Pb ²⁺/Cd ²⁺ and Pb ²⁺/Co ²⁺ are 99.3 and 114.7, respectively.

Original language	English
Journal	Journal of Environmental Sciences
Volume	23
Issue	12
Pages (from-to)	1955-1961
Number of pages	7
ISSN	1001-0742
DOIs	https://doi.org/10.1016/S1001-0742(10)60611-0
Publication status	Published - Dec 2011

Keywords

Adsorption
Lead ion-imprinted micro-beads
Lead ions
Recognition
Selective separation

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10.1016/S1001-0742(10)60611-0

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@article{c1c9a117b5a34e4da7c15dcc7a5ebe89,

title = "Synthesis and adsorption performance of lead ion-imprinted micro-beads with combination of two functional monomers",

abstract = "A novel ion-imprinted polymer, lead ion-imprinted micro-beads with combination of two functional monomers, was synthesized using the W/O/W polymerization method. Two functional monomers, 1,12-dodecanediol-O,O'-diphenyl-phosphonic acid (DDDPA) and 4-vinylpyridine, were used to form a suitable construction with micro-pores fitting the template and recognition sites. The effects of adsorbent dosage, solution pH and the competitive ions on the adsorption and separation efficiency of lead ions were investigated. The lead ion-imprinted micro-beads were efficient for lead ions removal from aqueous solution in a broad pH range (4-9), when the adsorbent dosage was above 0.1 g/L. The adsorption process obeyed the pseudo second-order kinetics model and it only took half an hour to reach the equilibrium. The adsorption isotherm of lead ion was described by the Langmuir model (R 2 >0.99) with a maximum adsorption capacity of 116.9 mg/g. In the presence of competitive ions Co 2+ and Cd 2+, the lead ion-imprinted micro-beads showed a high selectivity for lead ions. The selectivity coefficient of Pb 2+/Cd 2+ and Pb 2+/Co 2+ are 99.3 and 114.7, respectively.",

keywords = "Adsorption, Lead ion-imprinted micro-beads, Lead ions, Recognition, Selective separation",

author = "Linyan Zhu and Zhiliang Zhu and Ronghua Zhang and Jun Hong and Yanling Qiu",

year = "2011",

month = dec,

doi = "10.1016/S1001-0742(10)60611-0",

language = "English",

volume = "23",

pages = "1955--1961",

journal = "Journal of Environmental Sciences",

issn = "1001-0742",

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}

Synthesis and adsorption performance of lead ion-imprinted micro-beads with combination of two functional monomers. / Zhu, Linyan; Zhu, Zhiliang; Zhang, Ronghua et al.
In: Journal of Environmental Sciences, Vol. 23, No. 12, 12.2011, p. 1955-1961.

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

TY - JOUR

T1 - Synthesis and adsorption performance of lead ion-imprinted micro-beads with combination of two functional monomers

AU - Zhu, Linyan

AU - Zhu, Zhiliang

AU - Zhang, Ronghua

AU - Hong, Jun

AU - Qiu, Yanling

PY - 2011/12

Y1 - 2011/12

N2 - A novel ion-imprinted polymer, lead ion-imprinted micro-beads with combination of two functional monomers, was synthesized using the W/O/W polymerization method. Two functional monomers, 1,12-dodecanediol-O,O'-diphenyl-phosphonic acid (DDDPA) and 4-vinylpyridine, were used to form a suitable construction with micro-pores fitting the template and recognition sites. The effects of adsorbent dosage, solution pH and the competitive ions on the adsorption and separation efficiency of lead ions were investigated. The lead ion-imprinted micro-beads were efficient for lead ions removal from aqueous solution in a broad pH range (4-9), when the adsorbent dosage was above 0.1 g/L. The adsorption process obeyed the pseudo second-order kinetics model and it only took half an hour to reach the equilibrium. The adsorption isotherm of lead ion was described by the Langmuir model (R 2 >0.99) with a maximum adsorption capacity of 116.9 mg/g. In the presence of competitive ions Co 2+ and Cd 2+, the lead ion-imprinted micro-beads showed a high selectivity for lead ions. The selectivity coefficient of Pb 2+/Cd 2+ and Pb 2+/Co 2+ are 99.3 and 114.7, respectively.

AB - A novel ion-imprinted polymer, lead ion-imprinted micro-beads with combination of two functional monomers, was synthesized using the W/O/W polymerization method. Two functional monomers, 1,12-dodecanediol-O,O'-diphenyl-phosphonic acid (DDDPA) and 4-vinylpyridine, were used to form a suitable construction with micro-pores fitting the template and recognition sites. The effects of adsorbent dosage, solution pH and the competitive ions on the adsorption and separation efficiency of lead ions were investigated. The lead ion-imprinted micro-beads were efficient for lead ions removal from aqueous solution in a broad pH range (4-9), when the adsorbent dosage was above 0.1 g/L. The adsorption process obeyed the pseudo second-order kinetics model and it only took half an hour to reach the equilibrium. The adsorption isotherm of lead ion was described by the Langmuir model (R 2 >0.99) with a maximum adsorption capacity of 116.9 mg/g. In the presence of competitive ions Co 2+ and Cd 2+, the lead ion-imprinted micro-beads showed a high selectivity for lead ions. The selectivity coefficient of Pb 2+/Cd 2+ and Pb 2+/Co 2+ are 99.3 and 114.7, respectively.

KW - Adsorption

KW - Lead ion-imprinted micro-beads

KW - Lead ions

KW - Recognition

KW - Selective separation

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SN - 1001-0742

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SP - 1955

EP - 1961

JO - Journal of Environmental Sciences

JF - Journal of Environmental Sciences

IS - 12

ER -

Synthesis and adsorption performance of lead ion-imprinted micro-beads with combination of two functional monomers

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Keywords

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