In-situ synthesis of carbon dots-embedded europium metal-organic frameworks for ratiometric fluorescence detection of Hg2+ in aqueous environment

被引：94

作者：

Guo, Hao ^{[1
]}

Wang, Xiaoqiong ^{[1
]}

Wu, Ning ^{[1
]}

Xu, Mengni ^{[1
]}

Wang, Mingyue ^{[1
]}

Zhang, Longwen ^{[1
]}

Yang, Wu ^{[1
]}

机构：

[1] Northwest Normal Univ, Gansu Int Sci & Technol Cooperat Base Water Reten, Key Lab Bioelectrochem & Environm Anal Gansu Prov, Coll Chem & Chem Engn,Key Lab Ecoenvironm Related, Lanzhou 730070, Peoples R China

来源：

ANALYTICA CHIMICA ACTA | 2021年 / 1141卷

基金：

中国国家自然科学基金;

关键词：

Carbon dots; Eu-MOFs; Ratiometric fluorescent probe; Fluorescence sensing; Mercury ion; Green synthesis; POT GREEN SYNTHESIS; SENSITIVE DETECTION; SELECTIVE DETECTION; QUANTUM DOTS; MERCURY IONS; PROBE; NITROGEN; WATER; NANOPARTICLES; NANODOTS;

D O I：

10.1016/j.aca.2020.10.028

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A novel dual-emission ratiometric fluorescent sensor (CDs@Eu-MOFs) has been synthesized successfully by encapsulating water-soluble fluorescent CDs into the chambers of Eu-MOFs via a simple one-pot hydrothermal method, which can be used for the detection of Hg2+ in environmental water samples. The synthesized CDs@Eu-MOFs inherited simultaneously the excellent luminescence performance of Eu3+ and CDs and exhibited good structural and fluorescence stability in aqueous solution. The presence of Hg2+ changed the fluorescence intensity of CDs, while the fluorescence intensity of Eu-MOFs hardly changed, which could be used as the recognition part and the reference part respectively to construct the ratiometric fluorescence sensor. The obtained Hg2+ fluorescent probe showed a wide linear range (0 -300 mu M) and a low detection limit (0.12 nM). The developed method can be used as a multi-functional fluorescent sensor with high sensitivity and good selectivity for the determination of Hg2+ in actual water samples. (C) 2020 Elsevier B.V. All rights reserved.

引用

页码：13 / 20

页数：8

共 58 条

[1] Rapid and highly sensitive detection of mercury ions using a fluorescence-based paper test strip with an N-alkylaminopyrazole ligand as a receptor [J].

Aragay, Gemma ;

Monton, Helena ;

Pons, Josefina ;

Font-Bardia, Merce ;

Merkoci, Arben .

JOURNAL OF MATERIALS CHEMISTRY, 2012, 22 (13) :5978-5983

[2] Facile green synthesis of fluorescent N-doped carbon dots from Actinidia deliciosa and their catalytic activity and cytotoxicity applications [J].

Arul, Velusamy ;

Sethuraman, Mathur Gopalakrishnan .

OPTICAL MATERIALS, 2018, 78 :181-190

[3] Biological and catalytic applications of green synthesized fluorescent N-doped carbon dots using Hylocereus undatus [J].

Arul, Velusamy ;

Edison, Thomas Nesakumar Jebakumar Immanuel ;

Lee, Yong Rok ;

Sethuraman, Mathur Gopalakrishnan .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY, 2017, 168 :142-148

[4] Hydrothermal conversion of Magnolia liliiflora into nitrogen-doped carbon dots as an effective turn-off fluorescence sensing, multi-colour cell imaging and fluorescent ink [J].

Atchudan, Raji ;

Edison, Thomas Nesakumar Jebakumar Immanuel ;

Aseer, Kanikkai Raja ;

Perumal, Suguna ;

Lee, Yong Rok .

COLLOIDS AND SURFACES B-BIOINTERFACES, 2018, 169 :321-328

[5] Methionine-pyrene hybrid based fluorescent probe for trace level detection and estimation of Hg(II) in aqueous environmental samples: Experimental and computational studies [J].

Banerjee, Arnab ;

Karak, Debasis ;

Sahana, Animesh ;

Guha, Subarna ;

Lohar, Sisir ;

Das, Debasis .

JOURNAL OF HAZARDOUS MATERIALS, 2011, 186 (01) :738-744

[6] Highly Luminescent Metal-Organic Frameworks Through Quantum Dot Doping [J].

Buso, Dario ;

Jasieniak, Jacek ;

Lay, Matthew D. H. ;

Schiavuta, Piero ;

Scopece, Paolo ;

Laird, Jamie ;

Amenitsch, Heinz ;

Hill, Anita J. ;

Falcaro, Paolo .

SMALL, 2012, 8 (01) :80-88

[7] A new rhodamine based OFF-ON fluorescent chemosensors for selective detection of Hg2+ and Al3+ in aqueous media [J].

Chemate, Santosh ;

Sekar, Nagaiyan .

SENSORS AND ACTUATORS B-CHEMICAL, 2015, 220 :1196-1204

[8] Fluorescent and colorimetric sensors for environmental mercury detection [J].

Chen, Guiqiu ;

Guo, Zhi ;

Zeng, Guangming ;

Tang, Lin .

ANALYST, 2015, 140 (16) :5400-5443

[9] A New Approach to Design Ratiometric Fluorescent Probe for Mercury(II) Based on the Hg2+-Promoted Deprotection of Thioacetals [J].

Cheng, Xiaohong ;

Li, Qianqian ;

Qin, Jingui ;

Li, Zhen .

ACS APPLIED MATERIALS & INTERFACES, 2010, 2 (04) :1066-1072

[10] Ratiometric Fluorescence Detection of Mercury Ions in Water by Conjugated Polymer Nanoparticles [J].

Childress, Elizabeth S. ;

Roberts, Courtney A. ;

Sherwood, Desmarie Y. ;

LeGuyader, Clare L. M. ;

Harbron, Elizabeth J. .

ANALYTICAL CHEMISTRY, 2012, 84 (03) :1235-1239

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