Synthesis of magnetic ion-imprinted fluorescent CdTe quantum dots by chemical etching and their visualization application for selective removal of Cd(II) from water

Xubiao Luo; Bin Guo; Lichuan Wang; Fang Deng; Ruoxi Qi; Shenglian Luo; Chak Tong AU

doi:10.1016/j.colsurfa.2014.09.012

Synthesis of magnetic ion-imprinted fluorescent CdTe quantum dots by chemical etching and their visualization application for selective removal of Cd(II) from water

Xubiao Luo^*, Bin Guo, Lichuan Wang, Fang Deng, Ruoxi Qi, Shenglian Luo, Chak Tong AU

^*Corresponding author for this work

Department of Chemistry

Research output: Contribution to journal › Journal article › peer-review

41 Citations (Scopus)

Abstract

A novel magnetic Cd(II)-imprinted fluorescent CdTe quantum dot (Fe₃O₄@CdTe-IIP) was synthesized through chemical etching strategy without the use of functional monomer and cross-linkers, and was used as an adsorbent for the removal of Cd(II) from water. Fe₃O₄@CdTe-IIP not only shows much higher adsorption capacity and selectivity for Cd(II) than the non-imprinted counterpart (Fe₃O₄@CdTe), but also exhibits good photoluminescence and magnetism. The adsorption capacities of Fe₃O₄@CdTe-IIP and Fe₃O₄@CdTe for Cd(II) ions are 17.57 and 8.03mg/g, respectively. The studies of adsorption kinetics show that the adsorption rate of Fe₃O₄@CdTe-IIP is fast, and the adsorption process fits well with a pseudo-second-order model. Moreover, the progress of the adsorption of Cd(II) ions on Fe₃O₄@CdTe-IIP can be monitored according to color change of Fe₃O₄@CdTe-IIP because of its fluorescent recovery.

Original language	English
Pages (from-to)	186-193
Number of pages	8
Journal	Colloids and Surfaces A: Physicochemical and Engineering Aspects
Volume	462
DOIs	https://doi.org/10.1016/j.colsurfa.2014.09.012
Publication status	Published - 1 Nov 2014

User-Defined Keywords

Cd(II)
EDTA-etching method
Magnetic ion imprinted CdTe quantum dots
Selectivity

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10.1016/j.colsurfa.2014.09.012

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@article{f4b1b213439e4a4ea75e5d02e696fe46,

title = "Synthesis of magnetic ion-imprinted fluorescent CdTe quantum dots by chemical etching and their visualization application for selective removal of Cd(II) from water",

abstract = "A novel magnetic Cd(II)-imprinted fluorescent CdTe quantum dot (Fe3O4@CdTe-IIP) was synthesized through chemical etching strategy without the use of functional monomer and cross-linkers, and was used as an adsorbent for the removal of Cd(II) from water. Fe3O4@CdTe-IIP not only shows much higher adsorption capacity and selectivity for Cd(II) than the non-imprinted counterpart (Fe3O4@CdTe), but also exhibits good photoluminescence and magnetism. The adsorption capacities of Fe3O4@CdTe-IIP and Fe3O4@CdTe for Cd(II) ions are 17.57 and 8.03mg/g, respectively. The studies of adsorption kinetics show that the adsorption rate of Fe3O4@CdTe-IIP is fast, and the adsorption process fits well with a pseudo-second-order model. Moreover, the progress of the adsorption of Cd(II) ions on Fe3O4@CdTe-IIP can be monitored according to color change of Fe3O4@CdTe-IIP because of its fluorescent recovery.",

keywords = "Cd(II), EDTA-etching method, Magnetic ion imprinted CdTe quantum dots, Selectivity",

author = "Xubiao Luo and Bin Guo and Lichuan Wang and Fang Deng and Ruoxi Qi and Shenglian Luo and AU, {Chak Tong}",

note = "Funding Information: This work was financially supported by the National Natural Science Foundation of China ( 51178213, 51238002, 51272099, 51308278 ), Program for New Century Excellent Talents in University ( NCET-11-1004 ), Cultivating Program for Young Scientists of Jiangxi Province of China ( 20112BCB23016 ), Natural Science Foundation of Jiangxi Province ( 20122BAB213014 ) and Department of Education Fund of Jiangxi Province ( GJJ13506 ).",

year = "2014",

month = nov,

day = "1",

doi = "10.1016/j.colsurfa.2014.09.012",

language = "English",

volume = "462",

pages = "186--193",

journal = "Colloids and Surfaces A: Physicochemical and Engineering Aspects",

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publisher = "Elsevier B.V.",

}

Synthesis of magnetic ion-imprinted fluorescent CdTe quantum dots by chemical etching and their visualization application for selective removal of Cd(II) from water. / Luo, Xubiao; Guo, Bin; Wang, Lichuan et al.
In: Colloids and Surfaces A: Physicochemical and Engineering Aspects, Vol. 462, 01.11.2014, p. 186-193.

Research output: Contribution to journal › Journal article › peer-review

TY - JOUR

T1 - Synthesis of magnetic ion-imprinted fluorescent CdTe quantum dots by chemical etching and their visualization application for selective removal of Cd(II) from water

AU - Luo, Xubiao

AU - Guo, Bin

AU - Wang, Lichuan

AU - Deng, Fang

AU - Qi, Ruoxi

AU - Luo, Shenglian

AU - AU, Chak Tong

N1 - Funding Information: This work was financially supported by the National Natural Science Foundation of China ( 51178213, 51238002, 51272099, 51308278 ), Program for New Century Excellent Talents in University ( NCET-11-1004 ), Cultivating Program for Young Scientists of Jiangxi Province of China ( 20112BCB23016 ), Natural Science Foundation of Jiangxi Province ( 20122BAB213014 ) and Department of Education Fund of Jiangxi Province ( GJJ13506 ).

PY - 2014/11/1

Y1 - 2014/11/1

N2 - A novel magnetic Cd(II)-imprinted fluorescent CdTe quantum dot (Fe3O4@CdTe-IIP) was synthesized through chemical etching strategy without the use of functional monomer and cross-linkers, and was used as an adsorbent for the removal of Cd(II) from water. Fe3O4@CdTe-IIP not only shows much higher adsorption capacity and selectivity for Cd(II) than the non-imprinted counterpart (Fe3O4@CdTe), but also exhibits good photoluminescence and magnetism. The adsorption capacities of Fe3O4@CdTe-IIP and Fe3O4@CdTe for Cd(II) ions are 17.57 and 8.03mg/g, respectively. The studies of adsorption kinetics show that the adsorption rate of Fe3O4@CdTe-IIP is fast, and the adsorption process fits well with a pseudo-second-order model. Moreover, the progress of the adsorption of Cd(II) ions on Fe3O4@CdTe-IIP can be monitored according to color change of Fe3O4@CdTe-IIP because of its fluorescent recovery.

AB - A novel magnetic Cd(II)-imprinted fluorescent CdTe quantum dot (Fe3O4@CdTe-IIP) was synthesized through chemical etching strategy without the use of functional monomer and cross-linkers, and was used as an adsorbent for the removal of Cd(II) from water. Fe3O4@CdTe-IIP not only shows much higher adsorption capacity and selectivity for Cd(II) than the non-imprinted counterpart (Fe3O4@CdTe), but also exhibits good photoluminescence and magnetism. The adsorption capacities of Fe3O4@CdTe-IIP and Fe3O4@CdTe for Cd(II) ions are 17.57 and 8.03mg/g, respectively. The studies of adsorption kinetics show that the adsorption rate of Fe3O4@CdTe-IIP is fast, and the adsorption process fits well with a pseudo-second-order model. Moreover, the progress of the adsorption of Cd(II) ions on Fe3O4@CdTe-IIP can be monitored according to color change of Fe3O4@CdTe-IIP because of its fluorescent recovery.

KW - Cd(II)

KW - EDTA-etching method

KW - Magnetic ion imprinted CdTe quantum dots

KW - Selectivity

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U2 - 10.1016/j.colsurfa.2014.09.012

DO - 10.1016/j.colsurfa.2014.09.012

M3 - Journal article

AN - SCOPUS:84920088852

SN - 0927-7757

VL - 462

SP - 186

EP - 193

JO - Colloids and Surfaces A: Physicochemical and Engineering Aspects

JF - Colloids and Surfaces A: Physicochemical and Engineering Aspects

ER -

Synthesis of magnetic ion-imprinted fluorescent CdTe quantum dots by chemical etching and their visualization application for selective removal of Cd(II) from water

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