Electrospun graphene oxide/MIL-101(Fe)/poly(acrylonitrile-co-maleic acid) nanofiber: A high-efficient and reusable integrated photocatalytic adsorbents for removal of dye pollutant from water samples
| Autor: | Haiyan Wang, Fuyou Du, Zhujun Huang, Chenxi Zhao, Zhan Lai, Ruan Guihua, Dongying Zhu |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
Graphene Oxide 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Electrospinning 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials law.invention Biomaterials chemistry.chemical_compound Colloid and Surface Chemistry Adsorption Chemical engineering chemistry law Nanofiber Photocatalysis Rhodamine B Degradation (geology) 0210 nano-technology |
| Zdroj: | Journal of Colloid and Interface Science. 597:196-205 |
| ISSN: | 0021-9797 |
| Popis: | The electrospun graphene oxide/MIL-101(Fe)/poly(acrylonitrile-co-maleic acid) nanofibers (E-spun GO/MIL-101(Fe)/PANCMA NFs) were fabricated by a facile electrospinning method and used as integrated photocatalytic adsorbents (IPAs) to remove dye pollutant from water samples. Compared with E-spun GO/PANCMA and E-spun MIL-101(Fe)/PANCMA NFs, the fabricated E-spun GO/MIL-101(Fe)/PANCMA NFs exhibited higher adsorption ability and excellent photocatalytic activity towards a model pollutant Rhodamine B (RhB). Under the optimized conditions, the as-prepared IPAs achieved almost complete adsorption of RhB within 15 min with the maximum adsorption capacity of 10.46 mg/g. Under visible-light irradiation, 93.7% of RhB in 20 mL water sample was degraded within 20 min, and the degradation kinetics of RhB fitted well with the first-order kinetic model. In addition, LC-MS analysis of the RhB degradation products confirmed the degradation pathways, and the generated •OH radicals played important roles in the degradation process. Importantly, the E-spun GO/MIL-101(Fe)/PANCMA NFs exhibited good reusability and could be reused for consecutive 20 cycles, which make them promising candidate materials in the field of industrial applications and environmental remediation. |
| Databáze: | OpenAIRE |
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