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Preparation of surface anion imprinted polymer by developing a La(III)-coordinated 3-methacryloxyethyl-propyl bi-functionalized graphene oxide for phosphate removal
Journal of the Taiwan Institute of Chemical Engineers ( IF 5.5 ) Pub Date : 2018-02-21 , DOI: 10.1016/j.jtice.2018.02.001
Zhanchao Liu , Weifu Wu , Yan Liu , Xiao Hu

A novel phosphate surface-imprinted polymer (GO-IIP) with high performance has been prepared by developing a La(III)-coordinated 3-methacryloxyethyl-propyl (MPS) bi-functionalized graphene oxide (GO). La(III) modified graphene oxide (GO-La) was used as functional monomer and methyl methacrylate (MMA) was used as auxiliary functional monomer. The synthesized GO-IIP exhibited higher adsorption capacity and outstanding selectivity and recognition for the binding of phosphate than GO-NIP. The equilibrium adsorption isotherms can be well fitted by the Langmuir model and the maximum adsorption capacity was higher as 104.3 mg/g at 25°C. The results showed that GO-IIP exhibited excellent selectivity, good reusability and could be an ideal adsorbent for removing phosphate from wastewater.



中文翻译:

通过开发La(III)配位的3-甲基丙烯酰氧基乙基-丙基双官能化氧化石墨烯以去除磷酸盐来制备表面阴离子印迹聚合物

通过开发La(III)配位的3-甲基丙烯酰氧基乙基-丙基(MPS)双功能氧化石墨烯(GO),已经制备了具有高性能的新型磷酸盐表面压印聚合物(GO-IIP)。La(III)改性氧化石墨烯(GO-La)被用作功能单体,甲基丙烯酸甲酯(MMA)被用作辅助功能单体。合成的GO-IIP与GO-NIP相比,具有更高的吸附能力,出色的选择性和对磷酸盐的结合识别。Langmuir模型可以很好地拟合平衡吸附等温线,并且在25°C时最大吸附容量更高,为104.3 mg / g℃。结果表明,GO-IIP选择性好,可重复使用性好,是去除废水中磷酸盐的理想吸附剂。

更新日期:2018-02-21
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