Preparation of Magnetic CuFe<sub>2</sub>O<sub>4</sub>@Ag@ZIF-8 Nanocomposites with Highly Catalytic Activity Based on Cellulose Nanocrystals
A facile approach was successfully developed for synthesis of cellulose nanocrystals (CNC)-supported magnetic CuFe<sub>2</sub>O<sub>4</sub>@Ag@ZIF-8 nanospheres which consist of a paramagnetic CuFe<sub>2</sub>O<sub>4</sub>@Ag core and porous ZIF-8 shel...
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| Format: | Article |
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MDPI AG
2019-12-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/25/1/124 |
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| author | Sufeng Zhang Yongshe Xu Dongyan Zhao Wenqiang Chen Hao Li Chen Hou |
| author_facet | Sufeng Zhang Yongshe Xu Dongyan Zhao Wenqiang Chen Hao Li Chen Hou |
| author_sort | Sufeng Zhang |
| collection | DOAJ |
| description | A facile approach was successfully developed for synthesis of cellulose nanocrystals (CNC)-supported magnetic CuFe<sub>2</sub>O<sub>4</sub>@Ag@ZIF-8 nanospheres which consist of a paramagnetic CuFe<sub>2</sub>O<sub>4</sub>@Ag core and porous ZIF-8 shell. The CuFe<sub>2</sub>O<sub>4</sub> nanoparticles (NPs) were first prepared in the presence of CNC and dispersant. Ag NPs were then deposited on the CuFe<sub>2</sub>O<sub>4</sub>/CNC composites via an in situ reduction directed by dopamine polymerization (PDA). The CuFe<sub>2</sub>O<sub>4</sub>/CNC@Ag@ZIF-8 nanocomposite was characterized by TEM, FTIR, XRD, N<sub>2</sub> adsorption-desorption isotherms, VSM, and XPS. Catalytic studies showed that the CuFe<sub>2</sub>O<sub>4</sub>/CNC@Ag@ZIF-8 catalyst had much higher catalytic activity than CuFe<sub>2</sub>O<sub>4</sub>@Ag catalyst with the rate constant of 0.64 min<sup>−1</sup>. Because of the integration of ZIF-8 with CuFe<sub>2</sub>O<sub>4</sub>/CNC@Ag that combines the advantaged of each component, the nanocomposites were demonstrated to have an enhanced catalytic activity in heterogeneous catalysis. Therefore, these results demonstrate a new method for the fabrication of CNC-supported magnetic core-shell catalysts, which display great potential for application in biocatalysis and environmental chemistry. |
| first_indexed | 2024-12-11T00:32:47Z |
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| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-12-11T00:32:47Z |
| publishDate | 2019-12-01 |
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| record_format | Article |
| series | Molecules |
| spelling | doaj.art-c605a471ef2447b6a3b16e319210c7f92022-12-22T01:27:17ZengMDPI AGMolecules1420-30492019-12-0125112410.3390/molecules25010124molecules25010124Preparation of Magnetic CuFe<sub>2</sub>O<sub>4</sub>@Ag@ZIF-8 Nanocomposites with Highly Catalytic Activity Based on Cellulose NanocrystalsSufeng Zhang0Yongshe Xu1Dongyan Zhao2Wenqiang Chen3Hao Li4Chen Hou5College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, Key Laboratory of Paper Based Functional Materials of China National Light Industry, National Demonstration Center for Experimental Light Chemistry Engineering Education, Xi’an 710021, ChinaCollege of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, Key Laboratory of Paper Based Functional Materials of China National Light Industry, National Demonstration Center for Experimental Light Chemistry Engineering Education, Xi’an 710021, ChinaCollege of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, Key Laboratory of Paper Based Functional Materials of China National Light Industry, National Demonstration Center for Experimental Light Chemistry Engineering Education, Xi’an 710021, ChinaCollege of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, Key Laboratory of Paper Based Functional Materials of China National Light Industry, National Demonstration Center for Experimental Light Chemistry Engineering Education, Xi’an 710021, ChinaCollege of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, Key Laboratory of Paper Based Functional Materials of China National Light Industry, National Demonstration Center for Experimental Light Chemistry Engineering Education, Xi’an 710021, ChinaCollege of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, Key Laboratory of Paper Based Functional Materials of China National Light Industry, National Demonstration Center for Experimental Light Chemistry Engineering Education, Xi’an 710021, ChinaA facile approach was successfully developed for synthesis of cellulose nanocrystals (CNC)-supported magnetic CuFe<sub>2</sub>O<sub>4</sub>@Ag@ZIF-8 nanospheres which consist of a paramagnetic CuFe<sub>2</sub>O<sub>4</sub>@Ag core and porous ZIF-8 shell. The CuFe<sub>2</sub>O<sub>4</sub> nanoparticles (NPs) were first prepared in the presence of CNC and dispersant. Ag NPs were then deposited on the CuFe<sub>2</sub>O<sub>4</sub>/CNC composites via an in situ reduction directed by dopamine polymerization (PDA). The CuFe<sub>2</sub>O<sub>4</sub>/CNC@Ag@ZIF-8 nanocomposite was characterized by TEM, FTIR, XRD, N<sub>2</sub> adsorption-desorption isotherms, VSM, and XPS. Catalytic studies showed that the CuFe<sub>2</sub>O<sub>4</sub>/CNC@Ag@ZIF-8 catalyst had much higher catalytic activity than CuFe<sub>2</sub>O<sub>4</sub>@Ag catalyst with the rate constant of 0.64 min<sup>−1</sup>. Because of the integration of ZIF-8 with CuFe<sub>2</sub>O<sub>4</sub>/CNC@Ag that combines the advantaged of each component, the nanocomposites were demonstrated to have an enhanced catalytic activity in heterogeneous catalysis. Therefore, these results demonstrate a new method for the fabrication of CNC-supported magnetic core-shell catalysts, which display great potential for application in biocatalysis and environmental chemistry.https://www.mdpi.com/1420-3049/25/1/124cufe<sub>2</sub>o<sub>4</sub> nanoparticlescellulose nanocrystalsag nanoparticleszif-8 catalysis4-nitrophenol reduction |
| spellingShingle | Sufeng Zhang Yongshe Xu Dongyan Zhao Wenqiang Chen Hao Li Chen Hou Preparation of Magnetic CuFe<sub>2</sub>O<sub>4</sub>@Ag@ZIF-8 Nanocomposites with Highly Catalytic Activity Based on Cellulose Nanocrystals Molecules cufe<sub>2</sub>o<sub>4</sub> nanoparticles cellulose nanocrystals ag nanoparticles zif-8 catalysis 4-nitrophenol reduction |
| title | Preparation of Magnetic CuFe<sub>2</sub>O<sub>4</sub>@Ag@ZIF-8 Nanocomposites with Highly Catalytic Activity Based on Cellulose Nanocrystals |
| title_full | Preparation of Magnetic CuFe<sub>2</sub>O<sub>4</sub>@Ag@ZIF-8 Nanocomposites with Highly Catalytic Activity Based on Cellulose Nanocrystals |
| title_fullStr | Preparation of Magnetic CuFe<sub>2</sub>O<sub>4</sub>@Ag@ZIF-8 Nanocomposites with Highly Catalytic Activity Based on Cellulose Nanocrystals |
| title_full_unstemmed | Preparation of Magnetic CuFe<sub>2</sub>O<sub>4</sub>@Ag@ZIF-8 Nanocomposites with Highly Catalytic Activity Based on Cellulose Nanocrystals |
| title_short | Preparation of Magnetic CuFe<sub>2</sub>O<sub>4</sub>@Ag@ZIF-8 Nanocomposites with Highly Catalytic Activity Based on Cellulose Nanocrystals |
| title_sort | preparation of magnetic cufe sub 2 sub o sub 4 sub ag zif 8 nanocomposites with highly catalytic activity based on cellulose nanocrystals |
| topic | cufe<sub>2</sub>o<sub>4</sub> nanoparticles cellulose nanocrystals ag nanoparticles zif-8 catalysis 4-nitrophenol reduction |
| url | https://www.mdpi.com/1420-3049/25/1/124 |
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