A Facile Preparation of Multicolor Carbon Dots
Abstract Carbon dots (CDs) have raised broad interest because of their great potential in the fluorescence related fields, such as photocatalysis and bioimaging. CDs exhibit different optical properties when dissolved in various solvents. However, the effects of solvents during the process of prepar...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2022-03-01
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| Series: | Nanoscale Research Letters |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s11671-022-03661-z |
| _version_ | 1797706429033873408 |
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| author | Risheng Yu Sen Liang Yi Ru Lu Li Zhikun Wang Junlang Chen Liang Chen |
| author_facet | Risheng Yu Sen Liang Yi Ru Lu Li Zhikun Wang Junlang Chen Liang Chen |
| author_sort | Risheng Yu |
| collection | DOAJ |
| description | Abstract Carbon dots (CDs) have raised broad interest because of their great potential in the fluorescence related fields, such as photocatalysis and bioimaging. CDs exhibit different optical properties when dissolved in various solvents. However, the effects of solvents during the process of preparation on the fluorescence emission of CDs are still unclear. In this work, CDs were prepared by a simple one-pot solvothermal route. Typical critic acid and thiourea were used as precursors. Through changing the volume ratio of water to N,N-dimethylformamide (DMF), we have obtained color tunable CDs, with the emission wavelength from 450 to 640 nm. TEM images, Raman and XPS spectra indicate that the particle size of CDs and the content of surface functional groups (C–N/C–S and C≡N bonds) increase with the increasing ratio of DMF to water, which results in the optimal emission wavelength red-shifted. The prepared multicolor CDs may have prospects in the lighting applications. Graphical abstract |
| first_indexed | 2024-03-12T05:51:07Z |
| format | Article |
| id | doaj.art-09ea864bfccb4268911f34d644126854 |
| institution | Directory Open Access Journal |
| issn | 1556-276X |
| language | English |
| last_indexed | 2024-03-12T05:51:07Z |
| publishDate | 2022-03-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Nanoscale Research Letters |
| spelling | doaj.art-09ea864bfccb4268911f34d6441268542023-09-03T05:01:59ZengSpringerOpenNanoscale Research Letters1556-276X2022-03-011711910.1186/s11671-022-03661-zA Facile Preparation of Multicolor Carbon DotsRisheng Yu0Sen Liang1Yi Ru2Lu Li3Zhikun Wang4Junlang Chen5Liang Chen6Department of Optical Engineering, Zhejiang Prov Key Lab Carbon Cycling Forest Ecosy, College of Environmental and Resource Sciences, Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, Zhejiang A&F UniversityDepartment of Optical Engineering, Zhejiang Prov Key Lab Carbon Cycling Forest Ecosy, College of Environmental and Resource Sciences, Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, Zhejiang A&F UniversityDepartment of Optical Engineering, Zhejiang Prov Key Lab Carbon Cycling Forest Ecosy, College of Environmental and Resource Sciences, Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, Zhejiang A&F UniversityDepartment of Optical Engineering, Zhejiang Prov Key Lab Carbon Cycling Forest Ecosy, College of Environmental and Resource Sciences, Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, Zhejiang A&F UniversityDepartment of Optical Engineering, Zhejiang Prov Key Lab Carbon Cycling Forest Ecosy, College of Environmental and Resource Sciences, Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, Zhejiang A&F UniversityDepartment of Optical Engineering, Zhejiang Prov Key Lab Carbon Cycling Forest Ecosy, College of Environmental and Resource Sciences, Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, Zhejiang A&F UniversityDepartment of Optical Engineering, Zhejiang Prov Key Lab Carbon Cycling Forest Ecosy, College of Environmental and Resource Sciences, Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, Zhejiang A&F UniversityAbstract Carbon dots (CDs) have raised broad interest because of their great potential in the fluorescence related fields, such as photocatalysis and bioimaging. CDs exhibit different optical properties when dissolved in various solvents. However, the effects of solvents during the process of preparation on the fluorescence emission of CDs are still unclear. In this work, CDs were prepared by a simple one-pot solvothermal route. Typical critic acid and thiourea were used as precursors. Through changing the volume ratio of water to N,N-dimethylformamide (DMF), we have obtained color tunable CDs, with the emission wavelength from 450 to 640 nm. TEM images, Raman and XPS spectra indicate that the particle size of CDs and the content of surface functional groups (C–N/C–S and C≡N bonds) increase with the increasing ratio of DMF to water, which results in the optimal emission wavelength red-shifted. The prepared multicolor CDs may have prospects in the lighting applications. Graphical abstracthttps://doi.org/10.1186/s11671-022-03661-zMulticolor carbon dotsSolvothermal reactionTunable photoluminescence |
| spellingShingle | Risheng Yu Sen Liang Yi Ru Lu Li Zhikun Wang Junlang Chen Liang Chen A Facile Preparation of Multicolor Carbon Dots Nanoscale Research Letters Multicolor carbon dots Solvothermal reaction Tunable photoluminescence |
| title | A Facile Preparation of Multicolor Carbon Dots |
| title_full | A Facile Preparation of Multicolor Carbon Dots |
| title_fullStr | A Facile Preparation of Multicolor Carbon Dots |
| title_full_unstemmed | A Facile Preparation of Multicolor Carbon Dots |
| title_short | A Facile Preparation of Multicolor Carbon Dots |
| title_sort | facile preparation of multicolor carbon dots |
| topic | Multicolor carbon dots Solvothermal reaction Tunable photoluminescence |
| url | https://doi.org/10.1186/s11671-022-03661-z |
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