Surface Decoration of Pt Nanoparticles via ALD with TiO2 Protective Layer on Polymeric Nanofibers as Flexible and Reusable Heterogeneous Nanocatalysts
| Autor: | Tamer Uyar, Necmi Biyikli, Hamit Eren, Asli Celebioglu, Kugalur Shanmugam Ranjith |
|---|---|
| Přispěvatelé: | Bıyıklı, Necmi |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Materials science
lcsh:Medicine 02 engineering and technology 010402 general chemistry Platinum nanoparticles 01 natural sciences Article Atomic layer deposition chemistry.chemical_compound lcsh:Science Heterogeneous catalysis Nanoscale materials Multidisciplinary lcsh:R Polyacrylonitrile 021001 nanoscience & nanotechnology Nanomaterial-based catalyst Electrospinning 0104 chemical sciences Chemical engineering chemistry Nanofiber Titanium dioxide Nanoparticles lcsh:Q 0210 nano-technology Layer (electronics) |
| Zdroj: | Scientific Reports, Vol 7, Iss 1, Pp 1-10 (2017) Scientific Reports |
| ISSN: | 2045-2322 |
| DOI: | 10.1038/s41598-017-13805-2 |
| Popis: | Coupling the functional nanoheterostructures over the flexible polymeric nanofibrous membranes through electrospinning followed by the atomic layer deposition (ALD), here we presented a high surface area platform as flexible and reusable heterogeneous nanocatalysts. Here, we show the ALD of titanium dioxide (TiO2) protective nanolayer onto the electrospun polyacrylonitrile (PAN) nanofibrous web and then platinum nanoparticles (Pt-NP) decoration was performed by ALD onto TiO2 coated PAN nanofibers. The free-standing and flexible Pt-NP/TiO2-PAN nanofibrous web showed the enhancive reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) within 45 seconds though the hydrogenation process with the degradation rate of 0.1102 s−1. The TiO2 protective layer on the PAN polymeric nanofibers was presented as an effective route to enhance the attachment of Pt-NP and to improve the structure stability of polymeric nanofibrous substrate. Commendable enhancement in the catalytic activity with the catalytic dosage and the durability after the reusing cycles were investigated over the reduction of 4-NP. Even after multiple usage, the Pt-NP/TiO2-PAN nanofibrous webs were stable with the flexible nature with the presence of Pt and TiO2 on its surface. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
| Nepřihlášeným uživatelům se plný text nezobrazuje | K zobrazení výsledku je třeba se přihlásit. |