一锅法合成高荧光氮掺杂碳点及其在水溶液中高灵敏度检测Fe3+的应用研究  

One Pot Synthesis of Nitrogen Doped Carbon Dots with High Fluorescent and Its Application Research of High Sensitivity Detection of Fe3+in Aqueous Solution

作　　者：王晔[1] WANG Ye(College of Chemistry and Chemical Engineering , Luoyang Normal University , Luoyang 471022 , China)

机构地区：[1]洛阳师范学院化学化工学院,河南洛阳471022

出　　处：《河南化工》2020年第11期28-31,共4页Henan Chemical Industry

摘　　要：以L-苯丙氨酸和尿素为原料,通过一种简便、绿色且经济高效的溶剂热方法,在一锅中合成了高荧光的N掺杂碳点(CD),无需进一步的化学修饰,该碳量子点即显示出蓝色荧光。通过透射电镜及激光粒度仪等方法对其组成及形貌结构进行了表征。在干扰离子及空白对照存在下,Fe3+可强烈的增强CD的蓝色荧光,而其他金属离子却无此现象,因此本研究中合成的CD可以有效地用作具有高灵敏度和选择性的Fe3+的荧光探针。Using L-phenylalanine and ethylenediamine as raw material,high fluorescent N doped carbon dots(CDs)are synthesized in one pot by a simple,green and economical solvothermal method.Without further chemical modification,the carbon quantum dots show blue fluorescence.Its composition and morphology structure are characterized by transmission electron microscopy and laser particle size analyzer.Fe3+can strongly enhance the blue fluorescence of CD,but other metal ions have no such phenomenon.Therefore,the synthesized CD in this study can be effectively used as Fe3+fluorescent probe with high sensitivity and selectivity.

关 键 词：氮掺杂量子点 荧光探针 铁离子 选择性 

分 类 号：TQ421.38[化学工程]