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- W2613488093 abstract "A novel phosphinic acid functionalized polyacrylonitrile fiber (PANAPCF) was prepared and its adsorption properties were investigated. The PANAPCF shows excellent selectivity and efficiency for Hg2+ in the presence of other common metal ions, viz. Pb2+, Cd2+, Ag+, Zn2+, Cu2+, Ni2+, Co2+, Ca2+, Mg2+. Adsorption kinetics studies show that PANAPCF quickly captures Hg2+ and achieves equilibrium within 3 h. In addition, PANAPCF is effective over a wide range of pH values (from 3 to 11). The maximum adsorption capacity for Hg2+ as calculated by a Langmuir isotherm model was 434 mg g−1. PANAPCF could also efficiently remove Hg2+ from practical wastewater and the concentration of Hg2+ could be decreased as low as 27 ppb, which is below the maximum contamination level of 50 ppb for mercury containing wastewater in China. Furthermore, the PANAPCF can be used to remove Hg2+ from a flow process with a 99% removal efficiency even after ten cycles. Finally, XPS analysis proved that the PO/POH and –NH– functional groups play a major role in the adsorption mechanism." @default.
- W2613488093 created "2017-05-19" @default.
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- W2613488093 date "2017-10-01" @default.
- W2613488093 modified "2023-10-13" @default.
- W2613488093 title "A recyclable phosphinic acid functionalized polyacrylonitrile fiber for selective and efficient removal of Hg 2+" @default.
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- W2613488093 doi "https://doi.org/10.1016/j.cej.2017.04.135" @default.
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