Highly fluorescent carbon quantum dots as nanoprobes for sensitive and selective determination of mercury (II) in surface waters

被引：52

作者：

Hua, Jianhao ^{[1
]}

Yang, Jian ^{[2
]}

Zhu, Yan ^{[2
]}

Zhao, Chunxi ^{[1
]}

Yang, Yaling ^{[1
]}

机构：

[1] Kunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650500, Yunnan, Peoples R China

[2] Cent Monitoring Ctr Kunming City, Kunming 650228, Yunnan, Peoples R China

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2017年 / 187卷

关键词：

Carbon quantum dots; Polyacrylamide; Fluorescence quenching; Mercury ion detection; PHOTOLUMINESCENCE PROPERTIES; A549; ACTIVITY; PROBE; IONS; FACILE; PRECONCENTRATION; NANOPARTICLES; FABRICATION; SILVER; OXIDE;

D O I：

10.1016/j.saa.2017.06.058

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

A novel carbon quantum dots (CQDs) was successfully prepared through one-step green hydrothermal method using polyacrylamide as carbon source. The prepared CQDs were characterized using TEM, XRD, XPS, FT-IR, UV-Vis, and fluorescence spectroscopy. The CQDS was demonstrated as nanoprobes for mercury ion detection, moreover, it demonstrated excitation-dependent and superior stability in acidic and alkaline media. Besides, the probe exhibited a good linearity range (0.25-50 mu M) and a low detection limit (13.48 nM). These attractive properties indicated that this novel CQDS can adapt to a variety of complex pH environment, which had extensive prospect and promising application for detection of mercury ions in complex water samples. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：149 / 155

页数：7

共 63 条

[1] Effectiveness of Ni0.5Zn0.5Fe2O4 for the removal and preconcentration of Cr(VI), Mo(VI), V(V) and W(VI) oxyanions from water and wastewater samples [J].

Afkhami, Abbas ;

Aghajani, Samira ;

Mohseni, Milad ;

Madrakian, Tayyebeh .

JOURNAL OF THE IRANIAN CHEMICAL SOCIETY, 2015, 12 (11) :2007-2013

[2]

[Anonymous], 2006, NAT PRIM DRINK WAT R

[3] Novel nanocomposite materials for efficient and selective mercury ions capturing from wastewater [J].

Awual, Md. Rabiul .

CHEMICAL ENGINEERING JOURNAL, 2017, 307 :456-465

[4] Facile mercury detection and removal from aqueous media involving ligand impregnated conjugate nanomaterials [J].

Awual, Md Rabiul ;

Hasan, Md Munjur ;

Eldesoky, Gaber E. ;

Khaleque, Md Abdul ;

Rahman, Mohammed M. ;

Naushad, Mu .

CHEMICAL ENGINEERING JOURNAL, 2016, 290 :243-251

[5] Single molecular probe for multiple analyte sensing: Efficient and selective detection of mercury and fluoride ions [J].

Balamurugan, A. ;

Lee, Hyung-il .

SENSORS AND ACTUATORS B-CHEMICAL, 2015, 216 :80-85

[6] Highly effective removal of mercury and lead ions from wastewater by mercaptoamine-functionalised silica-coated magnetic nano-adsorbents: Behaviours and mechanisms [J].

Bao, Shuangyou ;

Li, Kai ;

Ning, Ping ;

Peng, Jinhui ;

Jin, Xu ;

Tang, Lihong .

APPLIED SURFACE SCIENCE, 2017, 393 :457-466

[7] A facile microwave-assisted fabrication of fluorescent carbon nitride quantum dots and their application in the detection of mercury ions [J].

Cao, Xiaotong ;

Ma, Jie ;

Lin, Yanping ;

Yao, Bixia ;

Li, Feiming ;

Weng, Wen ;

Lin, Xiuchun .

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 2015, 151 :875-880

[8] Inhibition of the human thioredoxin system - A molecular mechanism of mercury toxicity [J].

Carvalho, Cristina M. L. ;

Chew, Eng-Hui ;

Hashemy, Seyed Isaac ;

Lu, Jun ;

Holmgren, Arne .

JOURNAL OF BIOLOGICAL CHEMISTRY, 2008, 283 (18) :11913-11923

[9] Cold vapour atomic fluorescence determination of mercury in milk by slurry sampling using multicommutation [J].

Cava-Montesinos, P ;

Ródenas-Torralba, E ;

Morales-Rubio, A ;

Cervera, ML ;

de la Guardia, M .

ANALYTICA CHIMICA ACTA, 2004, 506 (02) :145-153

[10] Novel colorimetric sensor for mercury (II) based on layer-by-layer assembly of unmodified silver triangular nanoplates [J].

Detsri, Ekarat .

CHINESE CHEMICAL LETTERS, 2016, 27 (10) :1635-1640

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