Intramolecular hydrogen bonds quench photoluminescence and enhance photocatalytic activity of carbon nanodots
文献类型：期刊论文
| 作者 | Yang, Pengju1,2; Zhao, Jianghong1; Zhang, Lexi3; Li, Li1; Zhu, Zhenping1 |
| 刊名 | Chemistry-a european journal
 |
| 出版日期 | 2015-06-01 |
| 卷号 | 21期号:23页码:8561-8568 |
| 关键词 | Carbon Hydrogen bonds Luminescence Nanoparticles Photochemistry |
| ISSN号 | 0947-6539 |
| DOI | 10.1002/chem.201405088 |
| 通讯作者 | Zhao, jianghong(zjh_sx@sxicc.ac.cn) |
| 英文摘要 | Understanding the photoluminescence (pl) and photocatalytic properties of carbon nanodots (cnds) induced by environmental factors such as ph through surface groups is significantly important to rationally tune the emission and photodriven catalysis of cnds. through adjusting the ph of an aqueous solution of cnds, it was found that the pl of cnds prepared by ultrasonic treatment of glucose is strongly quenched at ph1 because of the formation of intramolecular hydrogen bonds among the oxygen-containing surface groups. the position of the strongest pl peak and its corresponding excitation wavelength strongly depend on the surface groups. the origins of the blue and green emissions of cnds are closely related to the carboxyl and hydroxyl groups, respectively. the deprotonated coo- and co- groups weaken the pl peak of the cnds and shift it to the red. cnds alone exhibit photocatalytic activity towards degradation of rhodamineb at different ph values under uv irradiation. the photocatalytic activity of the cnds is the highest at ph1 because of the strong intramolecular hydrogen bonds formed among the oxygen-containing groups. |
| WOS关键词 | GRAPHENE QUANTUM DOTS ; PHOTOINDUCED ELECTRON-TRANSFER ; VISIBLE-LIGHT PHOTOCATALYSTS ; CHARGE-SEPARATED STATES ; RIGID AMIDE SPACER ; UP-CONVERSION ; INFRARED-SPECTROSCOPY ; EMERGENT NANOLIGHTS ; FUNCTIONAL-GROUPS ; HIGH-YIELD |
| WOS研究方向 | Chemistry |
| WOS类目 | Chemistry, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000355260000035 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2376628 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Zhao, Jianghong |
| 作者单位 | 1.Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 3.Tianjin Univ Technol, Inst Mat Sci & Engn, Dept Mat Phys, Tianjin 300384, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Pengju,Zhao, Jianghong,Zhang, Lexi,et al. Intramolecular hydrogen bonds quench photoluminescence and enhance photocatalytic activity of carbon nanodots[J]. Chemistry-a european journal,2015,21(23):8561-8568. |
| APA | Yang, Pengju,Zhao, Jianghong,Zhang, Lexi,Li, Li,&Zhu, Zhenping.(2015).Intramolecular hydrogen bonds quench photoluminescence and enhance photocatalytic activity of carbon nanodots.Chemistry-a european journal,21(23),8561-8568. |
| MLA | Yang, Pengju,et al."Intramolecular hydrogen bonds quench photoluminescence and enhance photocatalytic activity of carbon nanodots".Chemistry-a european journal 21.23(2015):8561-8568. |
入库方式： iSwitch采集
来源：中国科学院大学
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。