Synthesis of highly fluorescent nitrogen-doped graphene quantum dots for sensitive, label-free detection of Fe (III) in aqueous media
文献类型：期刊论文
| 作者 | Ju, Jian ; Chen, Wei |
| 刊名 | biosensors & bioelectronics
 |
| 出版日期 | 2014 |
| 卷号 | 58期号:10页码:219-225 |
| 关键词 | OXYGEN REDUCTION REACTION ELECTROCATALYTIC ACTIVITY ULTRASENSITIVE DETECTION SELECTIVE DETECTION SENSING PLATFORM CARBON NANOTUBES POLYMER NANODOTS SHEETS GREEN IONS |
| 通讯作者 | chen,w |
| 英文摘要 | heteroatom doping can drastically alter the electronic characteristics of graphene quantum dots (gqds), thus resulting in unusual properties and related applications. herein, we develop a simple and low-cost synthetic strategy to prepare nitrogen-doped gqds (n-gqds) through hydrothermal treatment of gqds with hydrazine. the obtained n-gqds with oxygen-rich functional groups exhibit a strong blue emission with 23.3% quantum yield (qy). compared to gqds, the n-gqds exhibit enhanced fluorescence with blue-shifted energy. due to the selective coordination to fe3+, the n-gqds can be used as a green and facile sensing platform for label-free sensitive and selective detection of fe (iii) ions in aqueous solution and real water samples. the n-gqds fluorescence probe shows a sensitive response to fe3+ in a wide concentration range of 1-1945 mu m with a detection limit of 90 nm (s/n=3). interestingly, it is also found that both dynamic and static quenching processes occur for the detection of fe3+ by n-gqds, while the quenching effect of fe3+ on the fluorescence of gqds is achieved by affecting the surface states of gqds. (c) 2014 elsevier b.v. all rights reserved. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000336109900034 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/51060]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Ju, Jian,Chen, Wei. Synthesis of highly fluorescent nitrogen-doped graphene quantum dots for sensitive, label-free detection of Fe (III) in aqueous media[J]. biosensors & bioelectronics,2014,58(10):219-225. |
| APA | Ju, Jian,&Chen, Wei.(2014).Synthesis of highly fluorescent nitrogen-doped graphene quantum dots for sensitive, label-free detection of Fe (III) in aqueous media.biosensors & bioelectronics,58(10),219-225. |
| MLA | Ju, Jian,et al."Synthesis of highly fluorescent nitrogen-doped graphene quantum dots for sensitive, label-free detection of Fe (III) in aqueous media".biosensors & bioelectronics 58.10(2014):219-225. |
入库方式： OAI收割
来源：长春应用化学研究所
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