基于DMMP的ZnTPP-MIP的性能研究
發(fā)布時(shí)間:2018-04-18 19:09
本文選題:分子印跡技術(shù) + 接枝聚合方法; 參考:《重慶師范大學(xué)學(xué)報(bào)(自然科學(xué)版)》2016年06期
【摘要】:以甲基膦酸二甲酯(DMMP)為模板分子,甲基丙烯酸(MAA)為功能單體,摻雜四苯基卟啉鋅(ZnTPP),采用光引發(fā)接枝聚合方法在玻片上制備鋅卟啉分子印跡聚合物復(fù)合膜(ZnTPP-MIP)。通過(guò)紫外和熒光光譜研究了DMMP與ZnTPP之間的結(jié)合作用,利用接觸角分析印跡膜的親水性,掃描電鏡觀察膜的微孔結(jié)構(gòu)。利用光譜法研究了ZnTPP-MIP膜吸附性能和選擇性。實(shí)驗(yàn)結(jié)果表明在可見(jiàn)區(qū)波長(zhǎng)436nm附近,ZnTPP-MIP膜可以吸附檢測(cè)水中2.0×10-6 mmol·L-1的DMMP。這將為復(fù)雜有機(jī)磷農(nóng)藥樣品中DMMP的專一性識(shí)別提供一種新的途徑。
[Abstract]:Zinc porphyrin molecularly imprinted polymer composite film (ZnTPP-MIP) was prepared on glass by photo-initiated grafting polymerization with dimethyl phosphonate (DMMP) as template molecule and methacrylate (MAA) as functional monomer.The interaction between DMMP and ZnTPP was studied by UV and fluorescence spectra. The hydrophilicity of the imprinted membrane was analyzed by contact angle and the micropore structure of the membrane was observed by SEM.The adsorption properties and selectivity of ZnTPP-MIP membranes were studied by spectroscopic method.The experimental results show that the ZnTPP-MIP membrane can be used for the determination of DMMP2.0 脳 10-6 mmol L-1 in water near the visible wavelength of 436nm.This will provide a new way to identify the specificity of DMMP in complex organophosphorus pesticide samples.
【作者單位】: 湖南工程學(xué)院化學(xué)化工學(xué)院;
【基金】:湖南工程學(xué)院校級(jí)青年項(xiàng)目(No.0900100115057) 湖南省教育廳科學(xué)研究項(xiàng)目(No.16C0392)
【分類號(hào)】:TQ450.7;O631.3
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