A simple one-pot synthesis of highly fluorescent nitrogen-doped graphene quantum dots for the detection of Cr(VI) in aqueous media
文献类型：期刊论文
| 作者 | Cai, Fei1; Liu, Xidong2; Liu, Shuang2; Liu, Hong3 ; Huang, Yuming1
|
| 刊名 | RSC ADVANCES
 |
| 出版日期 | 2014 |
| 卷号 | 4期号:94页码:52016-52022 |
| ISSN号 | 2046-2069 |
| DOI | 10.1039/c4ra09320h |
| 通讯作者 | Huang, YM (reprint author), Southwest Univ, Coll Chem & Chem Engn, Minist Educ, Key Lab Luminescent & Real Time Analyt Chem, Chongqing 400715, Peoples R China. |
| 英文摘要 | A new method for selective determination of Cr(VI) in environmental water samples was developed based on its quenching effect on the fluorescent N-doping graphene quantum dots (N-GQDs). The N-GQDs were synthesized by a simple one-step method using citric acid as the carbon source and ammonia as the nitrogen source with a 65% yield, showing that mass production of the N-GQDs is possible. The obtained N-GQDs with oxygen-rich functional groups exhibited a strong blue emission with a quantum yield of 18.6%, which was 7 times greater than that of graphene quantum dots (GQDs). Due to the selective coordination to Cr(VI), the N-GQDs can be used as a green and facile sensing platform for label-free sensitive and selective detection of Cr(VI) ions in aqueous solution and real water samples. Compared to GQDs, the N-GQDs as a fluorescent probe promises much improved selectivity for sensing of Cr(VI). The N-GQDs fluorescence probe shows a sensitive response to Cr(VI) in a wide concentration range of 0-140 mu M with a detection limit of 40 nM. The N-GQDs-based fluorescence method was successfully used to selectively detect Cr(VI), and discriminate it and Cr(III) as well in aqueous samples. |
| 资助项目 | Natural Science Foundation of China[21277111] ; Natural Science Foundation of China[51378494] ; National College Students' innovation and entrepreneurship training program[201310642001] ; One Hundred Talents Program (Chinese Academy of Sciences) |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000344389000027 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/788]  |
| 专题 | 水污染过程与治理研究中心 |
| 通讯作者 | Huang, Yuming |
| 作者单位 | 1.Southwest Univ, Coll Chem & Chem Engn, Minist Educ, Key Lab Luminescent & Real Time Analyt Chem, Chongqing 400715, Peoples R China 2.Chongqing Univ Arts & Sci, Coll Mat & Chem Engn, Chongqing 402160, Peoples R China 3.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cai, Fei,Liu, Xidong,Liu, Shuang,et al. A simple one-pot synthesis of highly fluorescent nitrogen-doped graphene quantum dots for the detection of Cr(VI) in aqueous media[J]. RSC ADVANCES,2014,4(94):52016-52022. |
| APA | Cai, Fei,Liu, Xidong,Liu, Shuang,Liu, Hong,&Huang, Yuming.(2014).A simple one-pot synthesis of highly fluorescent nitrogen-doped graphene quantum dots for the detection of Cr(VI) in aqueous media.RSC ADVANCES,4(94),52016-52022. |
| MLA | Cai, Fei,et al."A simple one-pot synthesis of highly fluorescent nitrogen-doped graphene quantum dots for the detection of Cr(VI) in aqueous media".RSC ADVANCES 4.94(2014):52016-52022. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
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