Deposition of Au nanoparticles inside porous CeO2 nanocubes using Langmuir–Blodgett technique
| Autor: | Biswarup Satpati, Subhasis Das, Sasanka Deka, Chinnakonda S. Gopinath, Gourab Bhattacharjee, Mukesh Kumar, Tanushree Bala, Manoj Kumar Ghosalya |
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| Rok vydání: | 2018 |
| Předmět: |
Nanocomposite
technology industry and agriculture Nanoparticle 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Langmuir–Blodgett film Catalysis 0104 chemical sciences chemistry.chemical_compound X-ray photoelectron spectroscopy chemistry Chemical engineering Oleylamine Colloidal gold Monolayer Materials Chemistry Fourier transform infrared spectroscopy 0210 nano-technology |
| Zdroj: | New Journal of Chemistry. 42:1379-1386 |
| ISSN: | 1369-9261 1144-0546 |
| Popis: | Porous 3D CeO2 nanocubes were synthesized using hot injection technique. These nanocubes were able to form a stable monolayer over water and HAuCl4 subphase in Langmuir–Blodgett (LB) trough due to the presence of surface capped oleic acid and oleylamine. CeO2–Au nanocomposites were synthesized exploiting the ability of oleylamine to reduce AuCl4− ions to Au0, via LB method. CeO2 nanocubes gave rise to excellent long-range assembly at air/water interface and gold nanoparticles were formed inside these porous nanocubes without disturbing this arrangement. The formation of a stable monolayer was evidenced from the surface pressure–area (Π–A) isotherm. The development of Au nanoparticles was confirmed with great effort from a comprehensive study using UV-Vis spectroscopy, XRD, XPS, FTIR, TEM, STEM, EDX, tomography and chemical mapping. |
| Databáze: | OpenAIRE |
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