Ionic Liquid as a Precursor to Synthesize Nitrogen- and Sulfur-co-doped Carbon Dots for Detection of Copper（II） Ions  

作　　者：XU Panpan WANG Chunfeng SUN Dong CHEN Yujuan ZHUO Kelei 

机构地区：[1]Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, P. R. China

出　　处：《Chemical Research in Chinese Universities》2015年第5期730-735,共6页高等学校化学研究（英文版）

基　　金：Supported by the National Natural Science Foundation of China（Nos.20973055, 21173070） and the Plan for Scientific Innovation Talent of Henan Province of China（No. 124200510014）.

摘　　要：A facile approach was reported for the synthesis of nitrogen- and sulfur-co-doped carbon dots（N/S-CDs） by the sulfuric acid carbonization of 1-butyl-3-methylimidazolium 2-amino-3-mercaptopropionic acid（L-cysteine） salt（[C4mim][Cys]） ionic liquid. The as-prepared N/S-CDs exhibited a good solubility, excitation-dependent emission behavior, and high resistance to photobleaching. Furthermore, the N/S-CDs were employed as a fluorescent probe for detecting Cu^2＋ in real water samples with satisfactory recovery.A facile approach was reported for the synthesis of nitrogen- and sulfur-co-doped carbon dots（N/S-CDs） by the sulfuric acid carbonization of 1-butyl-3-methylimidazolium 2-amino-3-mercaptopropionic acid（L-cysteine） salt（[C4mim][Cys]） ionic liquid. The as-prepared N/S-CDs exhibited a good solubility, excitation-dependent emission behavior, and high resistance to photobleaching. Furthermore, the N/S-CDs were employed as a fluorescent probe for detecting Cu^2＋ in real water samples with satisfactory recovery.

关 键 词：Carbon dot Fluorescence Ionic liquid Cu^2＋ CO-DOPING 

分 类 号：TQ113.256[化学工程—无机化工] O646.1[理学—物理化学]