2,4,6-三氯酚分子印迹光子晶体水凝胶传感器的研究  

Molecularly Imprinted Photonic Crystal Hydrogel Sensor for Detection of 2,4,6-Trichlorophenol

作　　者：薛亚峰[1] 刘根起[1] 高敏君[1] 陈小娟[1] 范晓东[1] XUE Ya-Feng LIU Gen-Qi GAO Min-Jun CHEN Xiao-Juan FAN Xiao-Dong(Shaanxi Key Laboratory of Macromolecular Science and Technology, Department of Applied Chemistry, College of Science, Northwestern Polytechnical University, Xi＇an 710129, China)

机构地区：[1]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,西安710129

出　　处：《分析化学》2016年第12期1828-1833,共6页Chinese Journal of Analytical Chemistry

基　　金：西北工业大学研究生创意创新种子基金(No.Z2016168)资助

摘　　要：以Si O2三维光子晶体为模板,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。A molecularly imprinted photonic crystal hydrogel sensor was developed with 2 ,4 ,6-trichlorophenol （2,4,6-TCP） as imprinting molecule, methanol as solvent, methacrylic acid as monomers and ethylene glycol dimethylacrylate as cross-linkers. The three-dimension silica colloidal crystal template was removed by 1% HF （V/V） and molecularly imprinted template was removed by 0. 015 mol/L NaOH. The results showed that the maximum absorption peak red-shifted 31 nm when the concentration of 2 , 4 , 6-TCP changed from 0 to 6×10^-4 mol/L. Then, with further increasing 2,4,6-TCP concentration, the maximum absorption peak began to blue-shift. When the concentration of 2,4,6-TCP changed to 1×10^-3 mol/L, the maximum absorption peak blue-shifted 56 nm and the response time was just 30 min. This molecularly imprinted photonic crystal hydrogel sensor showed high sensitivity, high selectivity and easy operation, and was applied for the naked-eye detection of 2,4,6-trichlorophenol.

关 键 词：光子晶体 分子印迹 水凝胶 2 4 6-三氯酚 化学传感器 

分 类 号：X832[环境科学与工程—环境工程] O631.3[理学—高分子化学]