Recastable assemblies of carbon dots into mechanically robust macroscopic materials
Abstract Assembly of nanoparticles into macroscopic materials with mechanical robustness, green processability, and recastable ability is an important and challenging task in materials science and nanotechnology. As an emerging nanoparticle with superior properties, macroscopic materials assembled f...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-10-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-023-42516-8 |
| _version_ | 1797558515658653696 |
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| author | Bowen Sui Youliang Zhu Xuemei Jiang Yifan Wang Niboqia Zhang Zhongyuan Lu Bai Yang Yunfeng Li |
| author_facet | Bowen Sui Youliang Zhu Xuemei Jiang Yifan Wang Niboqia Zhang Zhongyuan Lu Bai Yang Yunfeng Li |
| author_sort | Bowen Sui |
| collection | DOAJ |
| description | Abstract Assembly of nanoparticles into macroscopic materials with mechanical robustness, green processability, and recastable ability is an important and challenging task in materials science and nanotechnology. As an emerging nanoparticle with superior properties, macroscopic materials assembled from carbon dots will inherit their properties and further offer collective properties; however, macroscopic materials assembled from carbon dots solely remain unexplored. Here we report macroscopic films assembled from carbon dots modified by ureido pyrimidinone. These films show tunable fluorescence inherited from carbon dots. More importantly, these films exhibit collective properties including self-healing, re-castability, and superior mechanical properties, with Young’s modulus over 490 MPa and breaking strength over 30 MPa. The macroscopic films maintain original mechanical properties after several cycles of recasting. Through scratch healing and welding experiments, these films show good self-healing properties under mild conditions. Moreover, the molecular dynamics simulation reveals that the interplay of interparticle and intraparticle hydrogen bonding controls mechanical properties of macroscopic films. Notably, these films are processed into diverse shapes by an eco-friendly hydrosetting method. The methodology and results in this work shed light on the exploration of functional macroscopic materials assembled from nanoparticles and will accelerate innovative developments of nanomaterials in practical applications. |
| first_indexed | 2024-03-10T17:31:29Z |
| format | Article |
| id | doaj.art-4b48dbd076634cf9a49954e0e8e6addd |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-03-10T17:31:29Z |
| publishDate | 2023-10-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj.art-4b48dbd076634cf9a49954e0e8e6addd2023-11-20T09:59:51ZengNature PortfolioNature Communications2041-17232023-10-0114111210.1038/s41467-023-42516-8Recastable assemblies of carbon dots into mechanically robust macroscopic materialsBowen Sui0Youliang Zhu1Xuemei Jiang2Yifan Wang3Niboqia Zhang4Zhongyuan Lu5Bai Yang6Yunfeng Li7State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin UniversityState Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin UniversityState Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin UniversityState Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin UniversityState Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin UniversityState Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin UniversityState Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin UniversityState Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin UniversityAbstract Assembly of nanoparticles into macroscopic materials with mechanical robustness, green processability, and recastable ability is an important and challenging task in materials science and nanotechnology. As an emerging nanoparticle with superior properties, macroscopic materials assembled from carbon dots will inherit their properties and further offer collective properties; however, macroscopic materials assembled from carbon dots solely remain unexplored. Here we report macroscopic films assembled from carbon dots modified by ureido pyrimidinone. These films show tunable fluorescence inherited from carbon dots. More importantly, these films exhibit collective properties including self-healing, re-castability, and superior mechanical properties, with Young’s modulus over 490 MPa and breaking strength over 30 MPa. The macroscopic films maintain original mechanical properties after several cycles of recasting. Through scratch healing and welding experiments, these films show good self-healing properties under mild conditions. Moreover, the molecular dynamics simulation reveals that the interplay of interparticle and intraparticle hydrogen bonding controls mechanical properties of macroscopic films. Notably, these films are processed into diverse shapes by an eco-friendly hydrosetting method. The methodology and results in this work shed light on the exploration of functional macroscopic materials assembled from nanoparticles and will accelerate innovative developments of nanomaterials in practical applications.https://doi.org/10.1038/s41467-023-42516-8 |
| spellingShingle | Bowen Sui Youliang Zhu Xuemei Jiang Yifan Wang Niboqia Zhang Zhongyuan Lu Bai Yang Yunfeng Li Recastable assemblies of carbon dots into mechanically robust macroscopic materials Nature Communications |
| title | Recastable assemblies of carbon dots into mechanically robust macroscopic materials |
| title_full | Recastable assemblies of carbon dots into mechanically robust macroscopic materials |
| title_fullStr | Recastable assemblies of carbon dots into mechanically robust macroscopic materials |
| title_full_unstemmed | Recastable assemblies of carbon dots into mechanically robust macroscopic materials |
| title_short | Recastable assemblies of carbon dots into mechanically robust macroscopic materials |
| title_sort | recastable assemblies of carbon dots into mechanically robust macroscopic materials |
| url | https://doi.org/10.1038/s41467-023-42516-8 |
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