| Heterogeneous synthesis of nitrogen-doped carbon dots prepared via anhydrous citric acid and melamine for selective and sensitive | |
| lqbal, Anam; lqbal, Kanwal; Xu, Lige; Li, Bo; Gong, Deyan; Liu, Xiaoyu; Guo, Yali; Liu, Weisheng; Qin, Wenwu; Guo, Huichen | |
| 第一作者 | lqbal, Anam |
| 2018-02 | |
| 发表期刊 | SENSORS AND ACTUATORS B-CHEMICAL |
| ISSN | 0925-4005 |
| 卷号 | 255页码:1130-1138 |
| 摘要 | Herein a new kind of convenient, low-cost, environmentally friendly and high-output heterogeneous one step synthesis of nitrogen-doped carbon dots (N-CDs) was developed by reacting anhydrous citric acid used as the carbon source and melamine as the surface passivation for nitrogen source without the use of any acid, alkali, organic solvents or metal ions along with high quantum yield (40% +/- 0.06) by solid state method. The emission spectrum shows a strong peak at 440 nm when excited at 360 nm, in the detection only the Hg (II) can readily quench the Photoluminescence (PL) of the N-CDs due to the strong electrostatic interaction and electron transfer between N-CDs and Hg (II), upon the addition of GSH PL of the N-CDs can be recovered owing to the preferred combination of Hg (II) and GSH by forming the Hg (II)-S or Hg (II)-NH bond indicating a remarkably high selectivity towards Hg2+ and biothiols (especially for GSH) among other metals and amino acids with a detection limit as low as 20 nM and 40 nM. With no apparent cytotoxicity, N-CDs could enter the baby hamster kidney (BHK) cells, indicating a practical potential probe for cellular imaging and labeling. Endowed the resulting N-CDs possess excitation dependent PL properties with relatively high sensitivity and selectivity, for the detection of Hg (II) and GSH in aqueous media, environmental and biological sensing applications. (C) 2017 Elsevier B.V. All rights reserved. |
| DOI | 10.1016/j.snb.2017.08.130 |
| 引用统计 | 正在获取...
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| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.isl.ac.cn/handle/363002/34433 |
| 专题 | 盐湖资源综合利用工程技术中心 |
| 推荐引用方式 GB/T 7714 | lqbal, Anam,lqbal, Kanwal,Xu, Lige,et al. Heterogeneous synthesis of nitrogen-doped carbon dots prepared via anhydrous citric acid and melamine for selective and sensitive[J]. SENSORS AND ACTUATORS B-CHEMICAL,2018,255:1130-1138. |
| APA | lqbal, Anam.,lqbal, Kanwal.,Xu, Lige.,Li, Bo.,Gong, Deyan.,...&Guo, Huichen.(2018).Heterogeneous synthesis of nitrogen-doped carbon dots prepared via anhydrous citric acid and melamine for selective and sensitive.SENSORS AND ACTUATORS B-CHEMICAL,255,1130-1138. |
| MLA | lqbal, Anam,et al."Heterogeneous synthesis of nitrogen-doped carbon dots prepared via anhydrous citric acid and melamine for selective and sensitive".SENSORS AND ACTUATORS B-CHEMICAL 255(2018):1130-1138. |
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| Heterogeneous synthe（5400KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
| 文件名： | Heterogeneous synthesis of nitrogen-doped carbon dots prepared via anhydrous citric acid and melamine for selective and sensitive.pdf |
| 格式： | Adobe PDF |
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