Adsorption of molybdate on molybdate-imprintedchitosan/triethanolamine gel beads
- Release time:2024-08-09
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Affiliation of Author(s):
化学与化工学院
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Journal:
Carbohydrate Polymers
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Key Words:
中文关键字：离子印迹；钼酸根离子；吸附；三乙醇胺，英文关键字：ChitosanIon-imprinted technology； Molybdate ；Triet
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Abstract:
Mo (VI)-imprinted chitosan (CTS)/triethanolamine (TEA) gel beads (Mo (VI)-ICTGBs) (ICTGBs = imprintedchitosan triethanolamine gel beads) were prepared by using ion-imprinted technology, in which TEA andmolybdate solution were used in coagulation bath. The spectrum of FT-IR implies that bonding are formedbetween TEA and the primary hydroxyl of CTS, and ion gel reaction happen between CTS and molybdate;XRD patterns also prove the change among CTS, TEA and molybdate. SEM images and N2adsorptionshow that the surface area increases obviously after eluting Mo (VI) ions. The adsorption isotherm of Mo(VI)-ICTGBs imply that the adsorption process is according with Freundlich model. Adsorption kineticssuggests that the pseudo-second order adsorption mechanism is predominant for this adsorbent sys-tem of Mo (VI)-ICTGBs. The Mo (VI)-ICTGBs show high adsorption capacity and good selectivity for Mo(VI) anions in the coexistence system at pH = 6.0. The Mo (VI)-ICTGBs have a good application prospect,because it is with a simple and rapid technique and good durance.
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Note:
SCI 核心
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Co-author:
JuanqinXue,XingwenZhou,XiangFei,YangWang,Y
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First Author:
zhangliang
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Indexed by:
Journal paper
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Volume:
卷：114
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Issue:
期：
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Page Number:
页：514–520
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Translation or Not:
no
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Date of Publication:
2014-08-01
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