Manganese-doped carbon quantum dots-based fluorescent probe for selective and sensitive sensing of 2,4,6-trinitrophenol via an inner filtering effect

被引：56

作者：

Fan, Huanhuan ^{[1
]}

Xiang, Guo Qiang ^{[1
]}

Wang, Yule ^{[1
]}

Zhang, Heng ^{[1
]}

Ning, Keke ^{[1
]}

Duan, Junyue ^{[1
]}

He, Lijun ^{[1
]}

Jiang, Xiuming ^{[1
]}

Zhao, Wenjie ^{[1
]}

机构：

[1] Henan Univ Technol, Sch Chem & Chem Engn, Zhengzhou 450001, Henan, Peoples R China

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2018年 / 205卷

基金：

中国国家自然科学基金;

关键词：

Carbon quantum dots; Trinitrophenol; Inner filtering effect; Water samples; EXPLOSIVE NITROAROMATICS; AQUEOUS-SOLUTION; PICRIC ACID; NANOPARTICLES; NANODOTS; TNP; PHOTOLUMINESCENCE; NANOSHEETS; SENSORS; PHASE;

D O I：

10.1016/j.saa.2018.07.006

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

In the present work, a selective and sensitive method for detecting TNP using manganese doped carbon quantum dots (Mn-CDs) was developed. The Mn-CDs were prepared via a simple hydrothermal method using 1-(2-pyridinylazo)-2-naohthalenol naohthalenol (PAN) and MnCl2 as precursors. The as-prepared Mn-CDs have UV emission with high quantum yield (83.2%). Because of the strong characteristic absorption of TNP at 356 nm, which has good spectral overlap with the emission peak of Mn-CDs, the fluorescence intensity of Mn-CDs at 360 nm is linearly quenched in the presence of TNP in the concentration range of 0.1-200 mu M. The developing assay based on an inner filter effect (IFE) mechanism for detecting TNP is selective, convenient, and shows that the as-prepared Mn-CDs have application prospects for simple and specific analytical chemistry. (C) 2018 Elsevier B.V. All rights reserved.

引用

页码：221 / 226

页数：6

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