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

被引：120

作者：

Cao, Xiaotong ^{[1
,2
]}

Ma, Jie ^{[1
,2
]}

Lin, Yanping ^{[1
,2
]}

Yao, Bixia ^{[1
,2
]}

Li, Feiming ^{[1
,2
]}

Weng, Wen ^{[1
,2
]}

Lin, Xiuchun ^{[3
]}

机构：

[1] Minnan Normal Univ, Coll Chem & Environm, Zhangzhou 363000, Peoples R China

[2] Fujian Prov Key Lab Modern Analyt Sci & Separat T, Zhangzhou 363000, Peoples R China

[3] Putian Univ, Coll Environm & Engn, Putian 351100, Peoples R China

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2015年 / 151卷

关键词：

Carbon nitride quantum dots; Fluorescent probe; Mercury ions; Citric acid; Urea; SELECTIVE DETECTION; COLORIMETRIC DETECTION; ASCORBIC-ACID; NANODOTS; NANOPARTICLES; NANOSHEETS; CHROMIUM; GREEN; PROBE; PURE;

D O I：

10.1016/j.saa.2015.07.034

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

A facile microwave-assisted solvothermal method was used to prepare fluorescent carbon nitride quantum dots (CNQDs) using oleic acid as the reaction media at moderate reaction temperature in a short time (5 min). Citric acid monohydrate and urea were used as the precursors. The as-prepared CNQDs were characterized by multiple analytical techniques. The CNQDs exhibited an uncommon excitation wavelength-dependent fluorescence with two maximum emission peaks at 450 and 540 nm. The CNQDs with a quantum yield of 27.1% could serve as an effective fluorescent sensing platform for label-free sensitive detection of Hg2+ ions With a detection limit of 0.14 mu M. This method was also applied to the detection of Hg2+ ions in tap water samples. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：875 / 880

页数：6

共 32 条

[1] Highly selective colorimetric detection and estimation of Hg2+ at nano-molar concentration by silver nanoparticles in the presence of glutathione [J].

Alam, Ayesha ;

Ravindran, Aswathy ;

Chandran, Preethy ;

Khan, S. Sudheer .

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 2015, 137 :503-508

[2] Luminescent Carbon Nanodots: Emergent Nanolights [J].

Baker, Sheila N. ;

Baker, Gary A. .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2010, 49 (38) :6726-6744

[3] Electrochemical Tuning of Luminescent Carbon Nanodots: From Preparation to Luminescence Mechanism [J].

Bao, Lei ;

Zhang, Zhi-Ling ;

Tian, Zhi-Quan ;

Zhang, Li ;

Liu, Cui ;

Lin, Yi ;

Qi, Baoping ;

Pang, Dai-Wen .

ADVANCED MATERIALS, 2011, 23 (48) :5801-5806

[4] Facile bulk production of highly blue fluorescent graphitic carbon nitride quantum dots and their application as highly selective and sensitive sensors for the detection of mercuric and iodide ions in aqueous media [J].

Barman, Sudip ;

Sadhukhan, Mriganka .

JOURNAL OF MATERIALS CHEMISTRY, 2012, 22 (41) :21832-21837

[5] Design of fluorescent materials for chemical sensing [J].

Basabe-Desmonts, Lourdes ;

Reinhoudt, David N. ;

Crego-Calama, Mercedes .

CHEMICAL SOCIETY REVIEWS, 2007, 36 (06) :993-1017

[6] Nitrogen-doped hollow carbon nanoparticles as efficient counter electrodes in quantum dot sensitized solar cells [J].

Dong, Jianhui ;

Jia, Suping ;

Chen, Jiazang ;

Li, Bo ;

Zheng, Jianfeng ;

Zhao, Jianghong ;

Wang, Zhijian ;

Zhu, Zhenping .

JOURNAL OF MATERIALS CHEMISTRY, 2012, 22 (19) :9745-9750

[7] Labeling of human hepatocellular carcinoma cells by hexamethylene diamine modified fluorescent carbon dots [J].

Dong, Wei ;

Dong, Yan ;

Wang, Ying ;

Zhou, Shiqi ;

Ge, Xin ;

Sui, Lili ;

Wang, Jingwen .

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 2013, 116 :209-213

[8] Green synthesis of fluorescent nitrogen/sulfurdoped carbon dots and investigation of their properties by HPLC coupled with mass spectrometry [J].

Hu, Qin ;

Paau, Man Chin ;

Zhang, Yan ;

Gong, Xiaojuan ;

Zhang, Lei ;

Lu, Dongtao ;

Liu, Yang ;

Liu, Qiaoling ;

Yao, Jun ;

Choi, Martin M. F. .

RSC ADVANCES, 2014, 4 (35) :18065-18073

[9] Size-Controlled Soft-Template Synthesis of Carbon Nanodots toward Versatile Photoactive Materials [J].

Kwon, Woosung ;

Lee, Gyeongjin ;

Do, Sungan ;

Joo, Taiha ;

Rhee, Shi-Woo .

SMALL, 2014, 10 (03) :506-513

[10]

Lakowicz J. R., 1999, PRINCIPLES FLUORESCE

← 1 2 3 4 →