Molecularly imprinted polymer foams with well-defined open-cell structure derived from Pickering HIPEs and their enhanced recognition of λ-cyhalothrin
Molecularly imprinted polymer foams with well-defined open-cell structure derived from Pickering HIPEs and their enhanced recognition of λ-cyhalothrin
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源自 Pickering HIPE 的具有明确开孔结构的分子印迹聚合物泡沫及其对 δ-氯氟氰菊酯的增强识别
DOI：
10.1016/j.cej.2014.05.031
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发表时间：
2014-10-01
影响因子：
15.1
通讯作者：
Yan, Yongsheng
中科院分区：
文献类型：
--
作者：
Pan, Jianming;Qu, Qin;Yan, Yongsheng
首先通过添加少量非离子表面活性剂Hypermer 2296，用疏水二氧化硅颗粒稳定油包水型Pickering高内相乳液。以Pickering HIPEs为模板分子制备了分子印迹泡沫材料，并对高效氯氟氰菊酯的选择性吸附进行了研究。表征结果表明，MIPFs具有开孔结构、连通孔、热稳定性、适度的疏水性和机械稳定性。对高效氯氟氰菊酯的吸附容量密切相关的形态的MIPFs，如孔隙直径和互连，这可以很容易地通过改变Pickering HIPES的参数进行定制。批模式实验证明，所制备的MIPFs表现出优异的吸附容量（46.10 μ mol g（-1），在25 ℃）和增强识别对氯氟氰菊酯氰戊菊酯和邻苯二甲酸二乙酯。(C)2014爱思唯尔有限公司版权所有。
The water-in-oil Pickering high internal phase emulsions (HIPEs) were firstly stabilized by hydrophobic silica particles with adding small amounts of nonionic surfactant Hypermer 2296. Then molecularly imprinted polymer foams (MIPFs) derived from Pickering HIPEs were evaluated as adsorbents for the selective adsorption of lambda-cyhalothrin. The results of characterization indicated that MIPFs possessed open-cell structure, interconnecting pores, thermal stability, moderate hydrophobicity and mechanical robust. The adsorption capacity for lambda-cyhalothrin were closely related with the morphologies of the MIPFs, such as void diameter and interconnectivity, which could be easily tailored by varying the parameters of Pickering HIPEs. The batch mode experiments proved that as-prepared MIPFs exhibited the excellent adsorption capacity for lambda-cyhalothrin (46.10 mu mol g(-1) at 25 degrees C) and enhanced recognition towards lambda-cyhalothrin over fenvalerate and diethyl phthalate. (C) 2014 Elsevier B.V. All rights reserved.