芦苇碳量子点的微波法制备及对Co^(2+)的检测  

Preparation of Reed Carbon Quantum Dots by Microwave Method and Detection of Co^(2+)

作　　者：王闻琰 郭志亮 刘雪莹 王晓晴 王爱丽 王芳 Wang Wenyan;Guo Zhiliang;Liu Xueying;Wang Xiaoqing;Wang Aili;Wang Fang(College of Chemistry and Chemical Engineering,Dezhou University,Dezhou 253023,China;Shanxi Xinguohuan Environmental Protection Technology Co.,Ltd.,Taiyuan 030002,China)

机构地区：[1]德州学院化学化工学院,山东德州253023 [2]山西欣国环环保科技有限公司,山西太原030002

出　　处：《山东化工》2023年第11期132-135,共4页Shandong Chemical Industry

基　　金：德州学院2022年度实验技术立项项目(SYJS22005)。

摘　　要：以芦苇为碳源,以3-氨丙基三甲氧基硅烷(APS)为修饰剂,600 W的条件下微波消解反应2 min,用微波法合成的荧光碳量子点(APS-CQDs)稳定性好、灵敏度高。将合成的碳量子点溶液在电压为600 V,狭缝为10 nm的条件下,在465 nm可见光下呈现出淡绿色荧光。基于Co^(2+)对芦苇碳量子点具有良好的荧光猝灭效应,建立了一种简单且快速检测Co^(2+)的新方法。实验结果表明,对于0.01~0.1 mmol/L的Co^(2+)对芦苇碳量子点的荧光猝灭程度呈现最好的线性关系(R^(2)=0.9911),检出限可达0.118μmol/L。Reed carbon quantum dots were synthesized via microwave method.Reed as the precursors,3-aminopropyl trimethoxy silane(APS)as the modification,and synthesis is completed in the microwave digestion at 600 W for 2 min.Reed carbon quantum dots have favourable stability and sensitivity.Under the exposure of 465 nm visible light,the reed carbon quantum dots solution present viridescent fluorescence.Aim at the well quenching of Co^(2+)to reed carbon quantum dots,a rapid and handy method is established.The experimental result demonstrates that the best linear relation of Co^(2+)quench reed carbon quantum dots fluorescence in 0.01~0.1 mmol/L(R^(2)=0.9911),and detection line is 0.118μmol/L.

关 键 词：碳量子点 荧光 微波法 芦苇 钴离子 

分 类 号：TQ127.1[化学工程—无机化工] O657.3[理学—分析化学]