Magnetic ion-imprinted and –SH functionalized polymer for selective removal of Pb(II) from aqueous samples

Guo, Bin; Deng, Fang; Zhao, Yu; Luo, Xubiao; Luo, Shenglian; Au, Chak Tong

doi:10.1016/j.apsusc.2013.11.156

Cited by 107 publications

(47 citation statements)

References 33 publications

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“…16 Guo et al 17 functionalized −SH onto a magnetic ion-imprinted polymer by surface imprinting for selective removal of Pb(II) from aqueous samples, and Luo et al 18 used a crown ether as a functional monomer by inverse emulsion polymerization for the selective removal of Pb(II), both of which methods have shown excellent selectivity and adsorption performance. Many researchers have made great progress in the preparation of cadmium imprinted polymers.…”

Section: Introductionmentioning

confidence: 99%

Removal of Cadmium(II) from Wastewater Using Novel Cadmium Ion-Imprinted Polymers

Luo

et al. 2015

J. Chem. Eng. Data

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Cadmium ion-imprinted polymers (Cd-IIP) were synthesized by precipitation polymerization using a complex of dithizone and cadmium as a template. The saturation adsorption capacity of the Cd-IIP is two times that of the nonimprinted polymers (Cd-NIP). Homogeneous binding sites are confirmed by the Langmuir isotherm. The adsorption kinetics fit a pseudo-secondorder model well; and the adsorption equilibrium time is only approximately 20 min. The effect of coexisting ions on the Cd(II)-IIP and NIP were investigated by competing with Pb(II), Zn(II), Co(II), and Cu(II), and the ratio of relative selectivity coefficients was greater than 1.68. Thermodynamic parameters indicated that Cd(II) adsorption over IIP and NIP was a spontaneous and exothermic process. The enthalpy changes in different temperatures and adsorption energy are lower than −20.0 and 8 kJ/mol; respectively. These indicate that the adsorption process may be dominated by physisorption. The Cd-IIP was used for five cycles with a small decrease in adsorption capacity, which validated a significant potential of Cd-IIP in wastewater treatment.

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Section: Introductionmentioning

confidence: 99%

Removal of Cadmium(II) from Wastewater Using Novel Cadmium Ion-Imprinted Polymers

Luo

et al. 2015

J. Chem. Eng. Data

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“…7 and Table 2, the adsorption process of indium (III) ion on the In (III)-IIP and In (III)-NIP can be better described by pseudosecond-order kinetic model because the correlation coefficients are greater than 0.99 and the calculated q e values depending on the pseudo-second-order model are good in agreement with the experimental ones. Therefore, the results indicate that chemisorption is the rate-limiting step that controls the sorption process (Guo et al, 2014).…”

Section: Pseudo-second-order Kinetics Modelmentioning

confidence: 98%

“…A large number of IIPs and their applications have been reported for selective separation or pre-concentration Cu 2+ (Ebrahimzadeh et al, 2013), Cd 2+ (Lu et al, 2013), Ni 2+ (Jiang et al, 2006), Zn 2+ (Zhao et al, 2007), Hg 2+ (Xu et al, 2012), Pb 2+ (Liu et al, 2011), Fe 2+ (Wang et al, 2013), Th 4+ (He et al, 2007), Tl 3+ (Arbab-Zavar et al, 2011), UO 2 2+ (Milja et al, 2011), Cr 3+ (Birlik et al, 2007) and Ag + (Fan et al, 2011). All of these methods are preparing IIP, nevertheless, surface imprinting technique attracts extensive interest for researchers because several advantages are exhibited such as complete removal of the template ion, fast adsorption kinetics, good selectivity and quick mass transfer (Guo et al, 2014;Luo et al, 2011). To date, a variety of IIP have been synthesized on the basis of surface imprinting technique and widely applied for the solid-phase extraction, metal ion sensor and separation of target ion from wastewaters (Milja et al, 2011;Rao et al, 2006;Zheng et al, 2011).…”

Section: Introductionmentioning

confidence: 97%

Synthesis and application of a surface-grafted In (III) ion-imprinted polymer for selective separation and pre-concentration of indium (III) ion from aqueous solution

Feng

et al. 2015

Hydrometallurgy

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“…3F). Therefore, it is safe to conclude that adsorption of MIPs toward EM fits well with pseudo-second order model, and the process was controlled by chemical adsorption [33,38,39]. lated from Eqs.…”

Section: Adsorption Kineticsmentioning

confidence: 99%

Preparation and characterization of erythromycin molecularly imprinted polymers based on distillation–precipitation polymerization

Liu

Tang

et al. 2015

J of Separation Science

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Erythromycin-imprinted polymers with excellent recognition properties were prepared by an innovative strategy called distillation-precipitation polymerization. The interaction between erythromycin and methacrylic acid was studied by ultraviolet absorption spectroscopy, and the as-prepared materials were characterized by Fourier-transform infrared spectroscopy and scanning electron microscopy. Moreover, their binding performances were evaluated in detail by static, kinetic and selective sorption tests. It was found that the molecularly imprinted polymers afforded good morphology, monodispersity, and high adsorption capacity when the fraction of the monomers was 7 vol% in the whole reaction system, and the adsorption data for imprinted polymers correlated well with the Langmuir model. The maximum capacity of the imprinted and the non-imprinted polymers for adsorbing erythromycin is 44.03 and 19.95 mg/g, respectively. The kinetic studies revealed that the adsorption process fitted a pseudo-second-order kinetic model. Furthermore, the imprinted polymers display higher affinity toward erythromycin, compared with its analogue roxithromycin.

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Magnetic ion-imprinted and –SH functionalized polymer for selective removal of Pb(II) from aqueous samples

Cited by 107 publications

References 33 publications

Removal of Cadmium(II) from Wastewater Using Novel Cadmium Ion-Imprinted Polymers

Removal of Cadmium(II) from Wastewater Using Novel Cadmium Ion-Imprinted Polymers

Synthesis and application of a surface-grafted In (III) ion-imprinted polymer for selective separation and pre-concentration of indium (III) ion from aqueous solution

Preparation and characterization of erythromycin molecularly imprinted polymers based on distillation–precipitation polymerization

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