生物质碳量子点对水中金属离子的检测  

Detection of Metal Ions in Water by Biomass Carbon Quantum Dots

作　　者：王剑平 涂志强 胡恩柱[1] 陈妍洁 郭建华[1] 蔡威盟 唐丽霞 胡坤宏[1] WANG Jian-ping;TU Zhi-qiang;HU En-zhu;CHEN Yan-jie;GUO Jian-hua;CAI Wei-meng;TANG Li-xia;HU Kun-hong(Department of Chemistry and Material Engineering,Hefei University,Hefei 230601,China)

机构地区：[1]合肥学院能源材料与化工学院,安徽合肥230601

出　　处：《安徽化工》2022年第3期117-122,共6页Anhui Chemical Industry

基　　金：安徽省自然科学基金(2008085ME167)。

摘　　要：采用水热合成法成功制备出具有荧光性的稻壳基碳量子点以及衍生的氨基改性的碳量子点(BMA-CQDs、ACA-CQDs),将其作为荧光传感器检测水中不同离子含量。结果表明,DMA-CQDs碳量子点可以成功检测Cd^(2+)、Cr^(6+)、Cu^(2+)和Pb^(2+),相关系数均接近0.98。利用碳量子点的选择性荧光淬灭原理,提供了一种有效检测水体中Cd^(2+)和Cr^(2+)的简单、迅捷、高效率的方法。In this paper,rice husk based carbon quantum dots with fluorescence and amino modified carbon quantum dots(BMA-CQDs,ACA CQDs)were successfully prepared by hydrothermal synthesis.It is used as a fluorescent sensor to de⁃tect the content of different ions in water.The results show that DMA-CQDs carbon quantum dots can successfully detect Cd^(2+),Cr^(6+),Cu^(2+)and Pb^(2+)ions,and the correlation coefficients are close to 0.98.Based on the selective fluorescence quench⁃ing principle of carbon quantum dots,a simple,rapid and efficient method for the effective detection of Cd^(2+)and Cr^(6+)ions in water is provided.

关 键 词：生物质 碳量子点 金属离子含量 

分 类 号：O613.71[理学—无机化学]