摘要
利用一种简易的电化学一锅法合成了荧光碳纳米点.此种方法没有复杂的后续纯化过程可以一次性获得尺寸均一的纳米碳点(4±1 nm).过氧化氢可以直接将制得的碳纳米点荧光猝灭,当过氧化氢浓度范围在25～300μmol/L时,碳纳米点的荧光猝灭强度与过氧化氢浓度呈较好的线性关系,检测限为3μmol/L.本研究为过氧化氢的检测提供了一种新的简易的方法,在生化传感研究中有着巨大的应用前景.
In this work,fluorescent carbon nanodots (C-dots) with sizes of (4 ± 1 ) nm were synthesized through a one-pot electrochemical method without further complicated purification,and the fluorescence of the C-dots can be quenched by hydrogen peroxide directly.The fluorescence intensity (FL)of C-dots was decreased linearly with the hydrogen peroxide concentration in the range of 25 μmol/L to 300 μmol/L,and the detection limit was 3 μmol/L.This may offer a simple and sensitive method in sensing hydrogen peroxide.
出处
《湖南师范大学自然科学学报》
CAS
北大核心
2012年第1期43-47,共5页
Journal of Natural Science of Hunan Normal University
基金
国家自然科学基金资助项目(20975037)
关键词
碳纳米点
电化学一锅法
荧光猝灭
过氧化氢
carbon nanodots
one-pot electrochemical method
fluorescence quench
hydrogen peroxide
