發(fā)布時間：2018-06-11 15:40

  本文選題：鄰苯二甲酸二丁酯 + 分子印跡聚合物�。� 參考：《分析化學》2017年04期

【摘要】：采用表面接枝法對四氧化三鐵納米粒子表面進行功能化修飾,以二甲基丙烯酸乙二醇酯(EGDMA)為交聯劑,偶氮二異丁腈(AIBN)為引發(fā)劑,成功制備了對鄰苯二甲酸二丁酯(DBP)具有特異識別性能的磁性表面印跡聚合物(MMIPs)。利用掃描電鏡、透射電鏡、振動樣品磁強計、元素分析、紅外光譜等對其進行表征。BET測試結果表明,MMIPs的比表面積(380 m~2/g)大于MNIPs(324 m~2/g)。吸附動力學、等溫線模型分析顯示,MMIPs對DBP的Sips等溫線模型相關系數R~2=0.999,動力學Pseudo-second-order模型相關系數(R~2)為0.9797。對鄰苯二甲酸二烯丙酯(DAP)、DBP和鄰苯二甲酸二(2-乙基己基)酯(DEHP)的印跡因子分別為1.53、2.21和1.39,對DBP具有較高的印跡因子和較好的識別性能。磁性分子印跡聚合物經5次再生后,對DBP的吸附能力僅下降了12.3%,表明再生循環(huán)效果較好。
[Abstract]:The surface of Fe _ 2O _ 4 nanoparticles was functionalized by surface grafting method, using ethylene glycol dimethacrylate (EGDMA) as crosslinking agent and azodiisobutyronitrile (AIBN) as initiator. A magnetic surface imprinted polymer (MMIPsN) with special recognition property was successfully prepared. Scanning electron microscope, transmission electron microscope, vibratory sample magnetometer, elemental analysis and infrared spectroscopy were used to characterize the MMIPs. The results of BET showed that the specific surface area of MMIPs was 380mN / 2 / g) larger than that of MNIPs324mGN / g / g. The adsorption kinetics and isotherm model analysis showed that the correlation coefficient of MMIPs to DBP isotherm model was 0.999, and the correlation coefficient of kinetic Pseudo-secondary order model was 0.979 7. The imprinting factors of DBP and DEHP were 1.53n2.21 and 1.39, respectively, which showed higher imprinting factor and better recognition performance for DBP. The adsorption ability of the magnetic molecularly imprinted polymer to DBP decreased only by 12.3i after regeneration for 5 times, which indicated that the regeneration cycle was better.
【作者單位】： 江蘇大學環(huán)境與安全工程學院;江蘇大學材料科學與工程學院;
【基金】：國家自然科學基金項目(No.21677064) 中國博士后自然科學基金項目(No.2015T80515) 江蘇省自然科學基金項目(Nos.BK20151323,BK20151337)資助~~
【分類號】：O631.3

【相似文獻】

相關期刊論文 前10條

1 劉崢;溫玉清;黃美春;;銅離子印跡聚合物的制備及吸附性能[J];桂林工學院學報;2007年01期

2 王玲玲;閆永勝;鄧月華;李春香;徐婉珍;;鉛離子印跡聚合物的制備、表征及其在水溶液中的吸附行為研究[J];分析化學;2009年04期

3 賴曉綺;楊遠奇;薛s，

本文編號：2005805