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Highly luminescent S, N co-doped graphene quantum dots with broad visible absorption bands for visible light photocatalysts
文献类型：期刊论文
| 作者 | Qu, Dan1,2; Zheng, Min1; Du, Peng1,2; Zhou, Yue3; Zhang, Ligong1; Li, Di1; Tan, Huaqiao1; Zhao, Zhao1,2; Xie, Zhigang4; Sun, Zaicheng1 |
| 刊名 | NANOSCALE
 |
| 出版日期 | 2013 |
| 卷号 | 5期号:24页码:12272-12277 |
| ISSN号 | 2040-3364 |
| DOI | 10.1039/c3nr04402e |
| 英文摘要 | A facile hydrothermal synthesis route to N and S, N co-doped graphene quantum dots (GQDs) was developed by using citric acid as the C source and urea or thiourea as N and S sources. Both N and S, N doped GQDs showed high quantum yield (78% and 71%), excitation independent under excitation of 340-400 nm and single exponential decay under UV excitation. A broad absorption band in the visible region appeared in S, N co-doped GQDs due to doping with sulfur, which alters the surface state of GQDs. However, S, N co-doped GQDs show different color emission under excitation of 420-520 nm due to their absorption in the visible region. The excellent photocatalytic performance of the S, N co-doped GQD/TiO2 composites was demonstrated by degradation of rhodamine B under visible light. The apparent rate of S, N: GQD/TiO2 is 3 and 10 times higher than that of N: GQD/TiO2 and P25 TiO2 under visible light irradiation, respectively. |
| 语种 | 英语 |
| WOS记录号 | WOS:000327507900034 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/46405]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Zhang, Ligong |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, State Key Lab Luminescence & Applicat, Changchun 130033, Jilin, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100000, Peoples R China 3.Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, State Key Lab Appl Opt, Changchun 130033, Jilin, Peoples R China 4.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Jilin, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qu, Dan,Zheng, Min,Du, Peng,et al. Highly luminescent S, N co-doped graphene quantum dots with broad visible absorption bands for visible light photocatalysts[J]. NANOSCALE,2013,5(24):12272-12277. |
| APA | Qu, Dan.,Zheng, Min.,Du, Peng.,Zhou, Yue.,Zhang, Ligong.,...&Sun, Zaicheng.(2013).Highly luminescent S, N co-doped graphene quantum dots with broad visible absorption bands for visible light photocatalysts.NANOSCALE,5(24),12272-12277. |
| MLA | Qu, Dan,et al."Highly luminescent S, N co-doped graphene quantum dots with broad visible absorption bands for visible light photocatalysts".NANOSCALE 5.24(2013):12272-12277. |
入库方式： OAI收割
来源：化学研究所
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