【摘要】 以聚苯乙烯二维光子晶体为模板,壬基酚（NP）为印迹分子,甲醇为溶剂,甲基丙烯酸为功能单体,二甲基丙烯酸乙二醇酯为交联剂（EGDMA）,2,2-二乙氧基苯乙酮（DEAP）为引发剂,经紫外光引发聚合,得到了可特异性识别壬基酚的分子印迹二维光子水凝胶传感器.通过测量德拜衍射环直径（D）的变化（ΔD）来判断传感器的响应性能.实验结果表明,在壬基酚溶液中,水凝胶的体积膨胀导致凝胶中光子晶体的粒子间距增大,德拜衍射环直径减小.随着溶液中NP的浓度从0增加到1×10^?5 mol/L,德拜衍射环的直径减小了8.0 mm,相应的光子晶体的颗粒间距增加了25.1 nm.在1×10^-13～1×10^-8 mol/L范围内,德拜衍射环直径的变化与壬基酚浓度的对数值（lgc）呈线性关系,制备的传感器检出限低至1×10^?13 mol/L,具有较高的灵敏度、良好的特异性识别能力和稳定的可重复利用性,并且可以实现对壬基酚的可视化检测.更多还原

【Abstract】 A molecularly imprinted two-dimensional photonic hydrogel sensor that can specifically recognizes nonylphenol（NP） was obtained by UV photoinitiated polymerization using polystyrene two-dimensional photonic crystal as template,NP as imprinted molecule,methanol as solvent,methacrylic acid as functional monomer,ethylene glycol dimethacrylate（EGDMA） as crosslinker,and 2,2-diethoxyacetophenone（DEAP） as initiator.The response performance of the sensor was determined by measuring the change in the diameter of the Debye diffraction ring（ΔD）.In the NP solution,the volume expansion of the hydrogel leads to the increase of the particle spacing of the photonic crystal in the gel,which leads to the decrease of the diameter of Debye diffraction ring.As the concentration of NP in the solution increases from 0 to 1×10^?5 mo/L,the diameter of Debye diffraction ring decreases by8.0 mm,and the particle spacing of the corresponding photonic crystal increases by 25.1 nm.In the NP concentration range of 1×10^?13—1×10^?8 mol/L,the change of Debye diffraction ring is linearly related to the logarithm value of NP concentration（lgc）.In addition,the detection limit of NP molecularly imprinted two-dimensional photonic crystal hydrogel sensor is as low as 1×10^?13 mol/L,which has high sensitivity,good specificity recognition ability and stable reusability,and can realize the visual detection of nonylphenol.更多还原