3,4,9,10-苝四甲酸二酐纳米材料的制备及其传感行为的研究  

Preparation of 3,4,9,10-Perylenetetracarboxylic Nanomaterial and Its Sensing Behavior

作　　者：李志英[1] 周晓敏[1] 霍曼[1] 张海容[1] LI Zhi-ying ZHOU Xiao-min HUO Man ZHANG Hai-rong(Department of Chemistry, Xinzhou Normal University, Xinzhou 034000, Chin)

机构地区：[1]忻州师范学院化学系,山西忻州034000

出　　处：《发光学报》2017年第3期303-307,共5页Chinese Journal of Luminescence

基　　金：山西省自然科学基金(2011011007-1,201601D02024)资助项目~~

摘　　要：以3,4,9,10-苝四甲酸二酐(PTTC)为原料,采用真空气相沉积-分子自组装法制备了有机纳米材料,通过扫描电镜、透射电镜、红外光谱、荧光光谱和差热分析表征所得产物。用吐温20增溶PTTC纳米材料,发现L-赖氨酸对该分散系的荧光具有较强的增敏作用,据此建立了L-赖氨酸的纳米荧光化学传感新方法。体系的荧光变化与赖氨酸浓度呈线性关系,线性范围为7.00×10-4~5.40×10-7mol/L,检出限为8.39×10-8mol/L。进一步研究发现,PTTC纳米结构使赖氨酸的循环伏安图电流差减小,有望据此制作赖氨酸纳米电化学传感器。Organic nanomaterial PTTC was prepared by directly self-assembling in the gas phase with a thermal vacuum evaporation process. The product was characterized by scanning electron mi- croscopy （SEM）, transmission electron microscopy （ TEM）, infrared spectrum （IR） ,fluorescence spectrum and differential thermal analysis（DTA）. The PTTC nanomaterial can be solubilized in the solution of Tween 20, and L-lysine has strong sensitizing effect for the fluorescence of the dispersion system. A nano-fluorescent chemical sensor of L-lysine is built based on the above results. The line- ar range is 7.00 × 10^-4 -5.40 × 10^-7 mol/L with the detection limit of 8.39 × 10^-8 mol/L. Further study show that the current difference of cyclic vohammogram of L-lysine is reduced by PTTC nano- structure, and it is expected to prepare a nano electrochemical sensor of L-lysine in the future.

关 键 词：3 4 9 10-茈四甲酸二酐 真空气相沉积-分子自组装法 有机纳米材料 L-赖氨酸 化学传感器 

分 类 号：O482.31[理学—固体物理]