Preparation of high quantum yield nitrogen and sulfur co-doped carbon dots for sensitive detection of Cu2+

被引：3

作者：

Wang, YingTe ^{[1
]}

Cheng, SiRong ^{[1
]}

Wu, RongRong ^{[1
]}

Zhang, YuanYuan ^{[1
]}

Wang, BoHan ^{[2
]}

机构：

[1] Shanxi Univ, Sch Chem & Chem Engn, Taiyuan, Peoples R China

[2] McGill Univ, Dept Elect & Comp Engn, Montreal, PQ, Canada

来源：

JOURNAL OF NANOPHOTONICS | 2024年 / 18卷 / 01期

关键词：

carbon dots; Cu2+; nitrogen and sulfur co-doped; fluorescence sensors; FLUORESCENT-PROBE; SENSOR; NANOCOMPOSITE; ACID; ION;

D O I：

10.1117/1.JNP.18.016011

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Nitrogen and sulfur co-doped green fluorescent carbon dots (G-CDs) with quantum yield (QY) of 28.26% were synthesized by hydrothermal method with p-phenylenediamine and thiosemicarbazone as precursors. The synthesized G-CDs exhibit good sensitivity and anti-interference ability for detecting copper ion (Cu2+) by fluorescence quenching (lambda(ex)=390 nm, lambda(em)=535 nm) with a linear range of 20 to 200 mu M and the limit of detection of 4.8 mu M. This analytical method has been applied to detect Cu(2+ )of the local lake with good accuracy and recovery. (c) 2024 Society of Photo-Optical Instrumentation Engineers (SPIE)

引用

页数：11

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