2,4,6-三氯酚分子印迹光子晶体水凝胶传感器的研究

发布时间：2018-01-08 11:44

本文关键词：2,4,6-三氯酚分子印迹光子晶体水凝胶传感器的研究　出处：《分析化学》2016年12期 　论文类型：期刊论文

【摘要】：以SiO2三维光子晶体为模板,2,4,6-三氯酚为印迹分子,甲醇为溶剂,甲基丙烯酸为功能单体,乙二醇二甲基丙烯酸甲酯为交联剂,通过紫外光引发聚合,在2%氢氟酸溶液中去除光子晶体模板,0.015 mol/L NaOH溶液中洗脱印迹分子,制得2,4,6-三氯酚检测用分子印迹光子晶体水凝胶传感器。结果表明,传感器对2,4,6-三氯酚具有良好的响应与识别能力,在2,4,6-三氯酚浓度由0增加到6×10~4mol/L过程中,吸收峰红移31 nm;浓度继续增加,吸收峰开始发生蓝移;当浓度增加到1×10~3mol/L时,吸收峰蓝移56 nm,响应时间仅需要30 min。2,4,6-三氯酚分子印迹光子晶体水凝胶传感器具有高灵敏、高选择、易操作等优点,可实现对2,4,6-三氯酚的裸眼检测。
[Abstract]:Using SiO2 three-dimensional photonic crystal as template, 2,4,6- three chlorophenol as imprinted molecule, methanol as solvent, methacrylic acid as functional monomer, ethylene glycol two methyl methacrylate as crosslinking agent by UV initiated polymerization, removal of photonic crystal templates in 2% hydrofluoric acid solution, 0.015 mol/L NaOH solution was prepared imprinted molecule, 2,4,6- three chlorophenol was detected by molecular imprinting Photonic Crystal Hydrogel sensor. The results show that the sensor has good response and recognition ability of 2,4,6- three in 2,4,6- three chlorophenols, chlorophenols concentration increased from 0 to 6 * 10~4mol/L in the process of absorption peak red shift is 31 nm; the concentration continues to increase, the absorption peak occurred blue shift; when the concentration increased to 1 * 10~3mol/L, a blue shift of the absorption peak of 56 nm, the response time of only 30 min.2,4,6- three by molecular imprinting Photonic Crystal Hydrogel sensor has high sensitivity, high selection, etc. can be realized as the merits of Yi Cao. The naked eye of 2,4,6- three chlorophenol was detected.

【作者单位】：西北工业大学理学院应用化学系陕西省高分子科学与技术重点实验室;
【基金】：西北工业大学研究生创意创新种子基金(No.Z2016168)资助
【分类号】：X832;O631.3
【正文快照】： 1引言近年来,氯酚类化合物的污染问题备受关注。氯酚类化合物是一种典型的有机氯农药类物质,可用作杀菌剂、除海藻剂、防霉剂以及杀虫剂等。由于氯酚类化合物的化学稳定性高,致使残留不易消失,严重污染环境,具有“三致”(致癌、致畸、致突变)效应和遗传毒性,微量的氯酚就能

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