Abstract
The current paper presents a novel Pb(II) ion-imprinted silica-supported organic–inorganic hybrid sorbent functionalized with chelating S,N-donor atoms by coupling a surface imprinting technique with a sol–gel process for the selective adsorption of Pb(II) ions from aqueous solution. Fourier transmission infrared spectroscopy, scanning electron microscopy, and N2 adsorption–desorption isotherms were used to characterize the Pb(II)-imprinted hybrid sorbent. The results revealed that the Pb(II)-imprinted hybrid sorbent had high adsorption capacity (54.9 mg g−1), fast adsorption equilibrium rate within 30 min, wide pH range (3.5–6.5) for constant adsorption capacity, high selectivity, and good regeneration performance.
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Acknowledgements
The project was sponsored by National Natural Sciences Foundation of China (No.21477082) and program for Liaoning Excellent Talents in University of China (grant no. LJQ2012032).
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Fan, HT., Liu, MX., Na, SB. et al. Preparation, characterization, and selective adsorption for lead(II) of imprinted silica-supported organic–inorganic hybrid sorbent functionalized with chelating S,N-donor atoms. Monatsh Chem 146, 459–463 (2015). https://doi.org/10.1007/s00706-014-1301-y
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DOI: https://doi.org/10.1007/s00706-014-1301-y