Changchun Institute of Optics,Fine Mechanics and Physics,CAS
| Supra-(carbon nanodots) with a strong visible to near-infrared absorption band and efficient photothermal conversion | |
Li, D. ; D. Han; S. N. Qu; L. Liu; P. T. Jing; D. Zhou; W. Y. Ji; X. Y. Wang; T. F. Zhang and D. Z. Shen
| |
| 2016 | |
| 发表期刊 | Light-Science & Applications
 |
| 卷号 | 5 |
| 摘要 | Nitrogen-doping has proven to be an effective strategy for enhancing the CO2 adsorption capacity of carbon-based adsorbents. However, it remains challenging to achieve a high doping level of nitrogen (N) and a significant porosity in a carbon material simultaneously. Here we report a facile method that enables the fabrication of ordered macroporous nitrogen-doped carbon with the content of N as high as 31.06 wt %. Specifically, we used poly(EGDMA-co-MAA) microspheres as a template to fabricate the structure which can strongly interact with melamine (the precursor of nitrogen-doped carbon framework), self-assemble into three-dimensionally ordered structure, and be easily removed afterward. Upon chemical activation, significant microporosity is generated in this material without degrading its ordered macroporous structure, giving rise to a hierarchically structured porous nitrogen-doped carbon in which a remarkable N content (14.45 wt %) is retained. This material exhibits a moderate CO2 adsorption capacity (2.69 mmol g(-1) at 25 degrees C and 3.82 mmol g(-1) at 0 degrees C under 1 bar) and an extraordinarily high CO2/N-2 selectivity (134), which is determined from the single-component adsorption isotherms based on the ideal adsorption solution theory (IAST) method. This value far exceeds the CO2/N-2 selectivity of thus-far reported carbon-based adsorbents including various nitrogen-doped ones. We believe that such an unprecedented CO2/N-2 selectivity is largely associated with the unusually high N content as well as the partially graphitic framework of this material. |
| 文章类型 | 期刊 |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ciomp.ac.cn/handle/181722/57009 |
| 专题 | 中科院长春光机所知识产出 |
| 推荐引用方式 GB/T 7714 | Li, D.,D. Han,S. N. Qu,et al. Supra-(carbon nanodots) with a strong visible to near-infrared absorption band and efficient photothermal conversion[J]. Light-Science & Applications,2016,5. |
| APA | Li, D..,D. Han.,S. N. Qu.,L. Liu.,P. T. Jing.,...&T. F. Zhang and D. Z. Shen.(2016).Supra-(carbon nanodots) with a strong visible to near-infrared absorption band and efficient photothermal conversion.Light-Science & Applications,5. |
| MLA | Li, D.,et al."Supra-(carbon nanodots) with a strong visible to near-infrared absorption band and efficient photothermal conversion".Light-Science & Applications 5(2016). |
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