一步水热法合成的聚合物保护的铜纳米簇及其对亚硝酸根的检测
兰承武1 ,赵桂芝2
1.吉林化工学院 材料科学与工程学院;2.吉林毓文中学
Preparation of Polyethyleneimine-templated Copper Nanoclusters by using One-Pot Hydrothermal And its Detection of Nitrite
LAN Chengwu, ZHAO Guizhi
摘要
亚硝酸根广泛存在于自然环境中,过量的亚硝酸根会导致高铁血红蛋白和蓝婴综合征。本研究实现CuNCs@PEI 的合成和对亚硝酸根的选择性检测,以CuSO4 为铜源,PEI为配体,采用一步水热合成了青绿色荧光的CuNCs@PEI。基于亚硝酸根和CuNCs@PEI反应生成非辐射复合物使荧光猝灭的原理,我们实现了在0~10 μM内具有良好线性关系的亚硝酸根的检测,其检测限为0.1 μM,用于检测水体中痕量亚硝酸根。
关键词:
铜纳米簇
亚硝酸根
荧光探针
Abstract:
Nitrite wildly exists in natural environment, with excess nitrite that may cause methemoglobin or Blue baby syndrome. This study achieves a one-pot hydrothermal synthesis of polyethyleneimine-capped copper nanoclusters which based on CuSO4 and PEI for detection of nitrite. Base on their formation of ground-state complex and fluorescence quenching. The limit of detection was 2 μM in the linear range of 0~1000 μM, which can detect the trace of nitrite.
Key words:
copper nanoclusters
nitrite detection
fluorescence probe
出版日期: 2019-05-25
发布日期: 2019-05-25
整期出版日期: 2019-05-25
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