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- W2990326972 abstract "The development of viable absorbents for highly efficient and selective removal of lead (Pb) ions, which might exist in various waste discharges related to human activities, is considered a long-standing challenge. Current scientific interests reside in achieving material absorbents with high porosity and desired functionality that respectively relate to generally higher Pb(II) uptake and selectivity. In this work, two-dimensional conjugated microporous polymers (CMP-2 and CMP-3) were rationally designed in which the heterogeneous (large and narrow) pores of these materials were chemically functionalized with cyano and pyridyl groups, respectively. As expected, the activated CMP-2a and CMP-3a displayed a high Pb(II) adsorption capacity of 62.7 and 93.2 mg g–1, respectively. Of note is that the CMP-3a could selectively uptake Pb(II) (84%) over Cu(II) (40%) and Ni(II) (18.6%) in simulated wastewater. It was demonstrated that the formation of functionalized and heterogeneous pore structures in CMP-3a accounted for its highly efficient and selective adsorption property toward Pb2+. In addition, CMP-2a and CMP-3a could be easily recovered and regenerated for Pb2+ removal from aqueous solutions and exhibited nondetectable cytotoxicity, which were favorable for their applications as viable and safe absorbents for Pb(II) removal in aqueous phases." @default.
- W2990326972 created "2019-12-05" @default.
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- W2990326972 date "2019-11-27" @default.
- W2990326972 modified "2023-10-05" @default.
- W2990326972 title "Highly Efficient and Selective Removal of Lead Ions from Aqueous Solutions by Conjugated Microporous Polymers with Functionalized Heterogeneous Pores" @default.
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- W2990326972 doi "https://doi.org/10.1021/acs.cgd.9b01265" @default.
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