A versatile fluorimetric chemosensor for mercury (II) assay based on carbon nanodots
文献类型：期刊论文
| 作者 | Wang, Ji-Hui1; Liang, Xiao-Chun1,2; Chen, Shuqin2; Gao, Jianmei2; Zhang, Hongyu1,2; Wang, Yu2; Feng, Liang2 |
| 刊名 | SENSORS AND ACTUATORS B-CHEMICAL
 |
| 出版日期 | 2018-07-15 |
| 卷号 | 265页码:293-301 |
| ISSN号 | 0925-4005 |
| 关键词 | Mercury Fluorimetric Chemosensor Carbon Nanodots |
| DOI | 10.1016/j.snb.2018.01.182 |
| 文献子类 | Article |
| 英文摘要 | Human urine mercury level functions as a pre-warning signal for mercury explosure, either in acute or chronic events. Unlike common hydrargyrism due to organic mercury uptake overproof via aquatic products, the risk of inorganic mercury toxication would be much higher for residents living in mercury related industry areas due to direct or indirect mercury wastewater emission to vicinal water system. In this work, we reported a novel fluorimetric chemosensor, 2,6-pyridinedicarboxylic acid-derived carbon nanodots (PECDs), which exhibits excellent versatility in direct inorganic Hg2+ detection. The fabrication was proved facile, inexpensive and eco-friendly. The morphology, chemical and spectral properties of PECDs were thoroughly investigated by using HRTEM, XPS, ATR-FTIR, UV-vis and fluorescent spectrum. PECDs showed a broad range of linearity between fluorescence intensity and Hg2+ concentration. The limit of detection was calculated as low as 75 nM. The sensing mechanism was investigated and assumed as fluorescence quenching originated from the formation of PECDs-Hg2+ complex, which facilitates the non radiative relaxation of surface emission of PECDs. In Hg2+ assay for real samples, considerable recoveries (RSD < 6%) and good linearity (R-2 > 0.99) were obtained in all four kinds of samples, involving reservoir water, tap water, female and male human urines. Thus, we believe our method would make certain contribution to the development of applicable versatile sensing platform for Hg2+. (C) 2018 Elsevier B.V. All rights reserved. |
| WOS关键词 | ATOMIC FLUORESCENCE SPECTROMETRY ; PLASMA-MASS SPECTROMETRY ; HG2+ DETECTION ; SELECTIVE DETECTION ; ULTRASENSITIVE DETECTION ; ABSORPTION-SPECTROMETRY ; GOLD NANOPARTICLES ; AQUEOUS-SOLUTION ; QUANTUM DOTS ; WATER |
| WOS研究方向 | Chemistry ; Electrochemistry ; Instruments & Instrumentation |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE SA |
| WOS记录号 | WOS:000430232500035 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/167150]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 通讯作者 | Wang, Ji-Hui; Feng, Liang |
| 作者单位 | 1.Dalian Polytech Univ, Sch Biol Engn, Dalian 116034, Liaoning, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Key Lab Separat Sci Analyt Chem, Dalian 116023, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Ji-Hui,Liang, Xiao-Chun,Chen, Shuqin,et al. A versatile fluorimetric chemosensor for mercury (II) assay based on carbon nanodots[J]. SENSORS AND ACTUATORS B-CHEMICAL,2018,265:293-301. |
| APA | Wang, Ji-Hui.,Liang, Xiao-Chun.,Chen, Shuqin.,Gao, Jianmei.,Zhang, Hongyu.,...&Feng, Liang.(2018).A versatile fluorimetric chemosensor for mercury (II) assay based on carbon nanodots.SENSORS AND ACTUATORS B-CHEMICAL,265,293-301. |
| MLA | Wang, Ji-Hui,et al."A versatile fluorimetric chemosensor for mercury (II) assay based on carbon nanodots".SENSORS AND ACTUATORS B-CHEMICAL 265(2018):293-301. |
入库方式： OAI收割
来源：大连化学物理研究所
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