Metal Nanoparticle Loaded Magnetic-Chitosan Microsphere: Water Dispersible and Easily Separable Hybrid Metal Nano-biomaterial for Catalytic Applications
| Autor: | Nagaraju Pentela, Baskaran Ramalingam, Debasis Samanta, Sujoy K. Das, Thanusu Parandhaman |
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| Rok vydání: | 2016 |
| Předmět: |
Thermogravimetric analysis
Materials science Renewable Energy Sustainability and the Environment General Chemical Engineering Analytical chemistry Nanoparticle 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences X-ray photoelectron spectroscopy Chemical engineering Zeta potential Environmental Chemistry Magnetic nanoparticles Thermal stability Fourier transform infrared spectroscopy 0210 nano-technology Superparamagnetism |
| Zdroj: | ACS Sustainable Chemistry & Engineering. 5:489-501 |
| ISSN: | 2168-0485 |
| Popis: | We report a green synthesis of magnetically separable hybrid metal nanobiomaterial as water dispersible and recyclable catalysts. The hybrid nanobiomaterial was prepared in a three-step process. The magnetic nanoparticles were initially synthesized by biomineralization process and coated with chitosan followed by binding and reduction of metal ions, which led to the formation of a magnetically separable hybrid nanobiomaterial (Fe3O4@Ch-MNPs, M = Au, Pd). The chemical composition, morphology, thermal stability, and magnetic behavior of the hybrid nanobiomaterial were characterized with zeta potential, Fourier transform infrared (FTIR), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), vibrating sample magnetometer (VSM), and field emission scanning electron microscopy (FESEM) analysis. The FESEM measurement demonstrated formation of highly dispersed Au and PdNPs on the surface of nanobiomaterial, while thermogravimetric and VSM analyses indicated high thermal stability and superparamagnetic ... |
| Databáze: | OpenAIRE |
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