Hairy silica nanosphere supported metal nanoparticles for reductive degradation of dye pollutants
| Autor: | Xin Chen, Bin Xu, Li Zhang, Mengxiang Zhou, Wei Yao, Hui Xu, Lianhong Hu, Tingting Chen |
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| Rok vydání: | 2021 |
| Předmět: |
Fabrication
Nanocomposite General Engineering Bioengineering 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Atomic and Molecular Physics and Optics 0104 chemical sciences Catalysis Matrix (chemical analysis) chemistry.chemical_compound chemistry Chemical engineering Covalent bond Rhodamine B Degradation (geology) General Materials Science Leaching (metallurgy) 0210 nano-technology |
| Zdroj: | Nanoscale Advances. 3:2879-2886 |
| ISSN: | 2516-0230 |
| Popis: | Hairy materials can act as a sort of scaffold for the fabrication of functional hybrid composites. In this work, silica nanospheres modified with covalently grafted poly(4-vinylpyridine) (P4VP) brushes, namely, “hairy” silica spheres, were utilized as a support for the anchorage of metal nanoparticles (MNPs), thus resulting in the hierarchical SiO2@P4VP/MNP structure. In this triple-phase boundary heteronanostructure, the SiO2-supported MNPs are well stabilized by the P4VP matrix to avoid aggregation and leaching. These SiO2@P4VP/MNP nanocomposites exhibit good catalytic activity in the reductive degradation of organic dyes, i.e., 4-nitrophenol and rhodamine B and possess excellent stability and recyclability for five successive cycles. |
| Databáze: | OpenAIRE |
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