Visible light triggered exfoliation of COF micro/nanomotors for efficient photocatalysis
We report a new facile light-induced strategy to disperse micron-sized aggregated bulk covalent organic frameworks (COFs) into isolated COFs nanoparticles. This was achieved by a series of metal-coordinated COFs, namely COF-909-Cu, -Co or -Fe, where for the first time the diffusio-phoretic propulsio...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2023-04-01
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| Series: | Green Energy & Environment |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2468025721001631 |
| _version_ | 1797867402790174720 |
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| author | Kai Feng Liang Zhang Jiang Gong Jinping Qu Ran Niu |
| author_facet | Kai Feng Liang Zhang Jiang Gong Jinping Qu Ran Niu |
| author_sort | Kai Feng |
| collection | DOAJ |
| description | We report a new facile light-induced strategy to disperse micron-sized aggregated bulk covalent organic frameworks (COFs) into isolated COFs nanoparticles. This was achieved by a series of metal-coordinated COFs, namely COF-909-Cu, -Co or -Fe, where for the first time the diffusio-phoretic propulsion was utilized to design COF-based micro/nanomotors. The mechanism studies revealed that the metal ions decorated in the COF-909 backbone could promote the separation of electron and holes and trigger the production of sufficient ionic and reactive oxygen species under visible light irradiation. In this way, strong light-induced self-diffusiophoretic effect is achieved, resulting in good dispersion of COFs. Among them, COF-909-Fe showed the highest dispersion performance, along with a drastic decrease in particle size from 5 μm to 500 nm, within only 30 min light irradiation, which is inaccessible by using traditional magnetic stirring or ultrasonication methods. More importantly, benefiting from the outstanding dispersion efficiency, COF-909-Fe micro/nanomotors were demonstrated to be efficient in photocatalytic degradation of tetracycline, about 8 times faster than using traditional magnetic stirring method. This work opens up a new avenue to prepare isolated nanosized COFs in a high-fast, simple, and green manner. |
| first_indexed | 2024-04-09T23:39:38Z |
| format | Article |
| id | doaj.art-9bb44ead3eae48ae8d212a67c2aaae6b |
| institution | Directory Open Access Journal |
| issn | 2468-0257 |
| language | English |
| last_indexed | 2024-04-09T23:39:38Z |
| publishDate | 2023-04-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Green Energy & Environment |
| spelling | doaj.art-9bb44ead3eae48ae8d212a67c2aaae6b2023-03-19T04:38:14ZengKeAi Communications Co., Ltd.Green Energy & Environment2468-02572023-04-0182567578Visible light triggered exfoliation of COF micro/nanomotors for efficient photocatalysisKai Feng0Liang Zhang1Jiang Gong2Jinping Qu3Ran Niu4Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, ChinaThe State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan 430079, ChinaKey Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China; Corresponding authors.Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China; National Engineering Research Center of Novel Equipment for Polymer Processing, Key Laboratory of Polymer Processing Engineering, Ministry of Education, Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing, School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou, 510641, ChinaKey Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China; Corresponding authors.We report a new facile light-induced strategy to disperse micron-sized aggregated bulk covalent organic frameworks (COFs) into isolated COFs nanoparticles. This was achieved by a series of metal-coordinated COFs, namely COF-909-Cu, -Co or -Fe, where for the first time the diffusio-phoretic propulsion was utilized to design COF-based micro/nanomotors. The mechanism studies revealed that the metal ions decorated in the COF-909 backbone could promote the separation of electron and holes and trigger the production of sufficient ionic and reactive oxygen species under visible light irradiation. In this way, strong light-induced self-diffusiophoretic effect is achieved, resulting in good dispersion of COFs. Among them, COF-909-Fe showed the highest dispersion performance, along with a drastic decrease in particle size from 5 μm to 500 nm, within only 30 min light irradiation, which is inaccessible by using traditional magnetic stirring or ultrasonication methods. More importantly, benefiting from the outstanding dispersion efficiency, COF-909-Fe micro/nanomotors were demonstrated to be efficient in photocatalytic degradation of tetracycline, about 8 times faster than using traditional magnetic stirring method. This work opens up a new avenue to prepare isolated nanosized COFs in a high-fast, simple, and green manner.http://www.sciencedirect.com/science/article/pii/S2468025721001631Micro/nanomotorCOFsExfoliationNanocatalystPhotocatalysis |
| spellingShingle | Kai Feng Liang Zhang Jiang Gong Jinping Qu Ran Niu Visible light triggered exfoliation of COF micro/nanomotors for efficient photocatalysis Green Energy & Environment Micro/nanomotor COFs Exfoliation Nanocatalyst Photocatalysis |
| title | Visible light triggered exfoliation of COF micro/nanomotors for efficient photocatalysis |
| title_full | Visible light triggered exfoliation of COF micro/nanomotors for efficient photocatalysis |
| title_fullStr | Visible light triggered exfoliation of COF micro/nanomotors for efficient photocatalysis |
| title_full_unstemmed | Visible light triggered exfoliation of COF micro/nanomotors for efficient photocatalysis |
| title_short | Visible light triggered exfoliation of COF micro/nanomotors for efficient photocatalysis |
| title_sort | visible light triggered exfoliation of cof micro nanomotors for efficient photocatalysis |
| topic | Micro/nanomotor COFs Exfoliation Nanocatalyst Photocatalysis |
| url | http://www.sciencedirect.com/science/article/pii/S2468025721001631 |
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