A facile method to sensitively monitor chlorinated phenols based on Ru(bpy)(3)(2+) electrochemiluminescent system using graphene quantum dots as coreactants

作者：Qi, Bao-Ping; Zhang, Xiaoru; Shang, Bing-Bing; Xiang, Dongshan; Qu, Wanyun; Zhang, Shenghui^*

来源：Carbon, 2017, 121: 72-78.

DOI：10.1016/j.carbon.2017.05.045

• Graphene quantum dot
• Ru(bpy)(3)(2+)
• Electrochemiluminescence
• Detection
• Phenol

Except the tunable photoluminescent property, graphene quantum dots (GQDs) with special structures have also exhibited other novel properties. Herein, GQDs played a novel coreactant role in Ru(bpy)(32+)/GQDs system to increase the anodic ECL signal of Ru(bpy)(3)(2+), which has been testified by ultraviolet, fluorescence, and electrochemiluminescence (ECL) experiments. Based on the coreactant mechanism of Ru(bpy)(3)(2+)/GQDs system, a chlorinated phenol- related quenching ECL sensor was designed and the sensor showed a good linear relationship in the range from 0.60 to 55 mM with the detection limit of 1.4 x 10(-8) M (S/N = 3). These results were not only beneficial to resolve the structure of GQDs, but also expanded the application field of GQDs.

• 出版日期2017-9
• 单位青岛科技大学; 湖北民族大学