Academic Journal
Controllable Assemblies of Au NPs/P5A for Enhanced Catalytic Reduction of 4-Nitrophenol
| العنوان: | Controllable Assemblies of Au NPs/P5A for Enhanced Catalytic Reduction of 4-Nitrophenol |
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| المؤلفون: | Zhaona Liu, Bing Li, Huacheng Zhang |
| المصدر: | Polymers, Vol 16, Iss 15, p 2104 (2024) |
| بيانات النشر: | MDPI AG |
| سنة النشر: | 2024 |
| المجموعة: | Directory of Open Access Journals: DOAJ Articles |
| مصطلحات موضوعية: | Pillar[5]arene, Au NPs, 4-Nitrophenol, assembly, catalytic reduction, Organic chemistry, QD241-441 |
| الوصف: | Efficient catalytic reduction of 4-nitrophenol (4-NP) is one focus of industry and practical engineering, because 4-NP is one of the most important sources of pollution of the ecological environment and human health. Here, coassembled hybrid composites of pillar[5]arene (P5A) and gold nanoparticles (Au NPs) were successfully developed by a one-step synthetic method as a type of water-insoluble catalyst for the reduction of 4-NP. The geometric and topological structures, as well as physiochemical properties of Au NPs/P5A composite catalyst, were fully characterized and analyzed through various tests such as transmission electron microscopy (TEM), X-ray diffraction (XRD), and Fourier-transform infrared spectroscopy (FTIR), indicating that Au NPs were well dispersed on the surface of the two-dimensional film of assembled P5A. The influence factors of the catalytic reduction of 4-NP were further investigated and discussed, confirming that the content of Au NPs and the concentration of 4-NP were very significant during the catalysis. The catalytic reaction was carried out at the catalyst concentration of 100 mg·L −1 and an initial 4-NP concentration of 90 mg·L −1 under 30 °C. The calculated reaction rate constant was 0.3959 min −1 and the reduction rate of 4-NP was more than 95% in 20 min. In addition, the as-prepared catalyst can maintain a high catalytic efficiency after five cycles. Thus, the easily recyclable composite catalyst with poor aqueous solution can exhibit prospective application to the treatment of 4-NP in water. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 2073-4360 |
| Relation: | https://www.mdpi.com/2073-4360/16/15/2104; https://doaj.org/toc/2073-4360; https://doaj.org/article/4f168043b25e440e9716dd8ae0430290 |
| DOI: | 10.3390/polym16152104 |
| الاتاحة: | https://doi.org/10.3390/polym16152104 https://doaj.org/article/4f168043b25e440e9716dd8ae0430290 |
| رقم الانضمام: | edsbas.CB169884 |
| قاعدة البيانات: | BASE |
Full Text Finder | تدمد: | 20734360 |
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| DOI: | 10.3390/polym16152104 |