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نویسندگان مقالات پربازدید :
مجله مهندسی شیمی
جزئیات رویداد
اینستاگرام تی پی بین
همایش ، رویداد ، ژورنال
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  • selective recognition of molybdenum(vi) from water by mo(vi) oxy ion-imprinted particle as an adsorbent

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    • تاریخ ارائه: 1392/01/01
    • تاریخ انتشار در تی پی بین: 1392/01/01
    • تعداد بازدید: 482
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     the isonicotinic acid (4-picolinic acid) served as a functional monomer firstly to prepare mo(vi) oxy ion-imprinted particle (mo-iip) by the surface metal ion imprinting technique with a sol–gel process on the surface of amino-silica, and teos acted as a cross-linker monomer. the prepared mo-iip was characterized and its proper selectivity recognition ability was investigated by single binding experiments comparing to mo(vi) oxy ion non-imprinted particle (mo-nip). furthermore, the reuse was carried out. a possible imprinting mechanism was put forward for the mo-iip. the binding process fitted well to the pseudo-second-order kinetic model, the langmuir model, and the weber–morris model. the results suggested that a multi-step with the film and intraparticle diffusion process might dominate this chemical sorption for mo(vi) binding onto mo-iip. the mo-iip exhibited selectivity for mo(vi) with a remarkably high binding capacity 2171.46 μmol g−1, which was 7.6 times higher than that of the mo-nip. such efficient selectivity might be due to the complexation ability of nitrogen atom in the 4-picolinic acid with supper memory sites after imprinting process. the excellent affinity and exclusive selectivity make the mo-iip become an potential material for mo(vi) removal and concentration from the water environment.

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