Bio inspired green synthesis of Ni/Fe3O4 magnetic nanoparticles using Moringa oleifera leaves extract: A magnetically recoverable catalyst for organic dye degradation in aqueous solution
| Autor: | Seelolla Gangadhara, Ponneri Venkateswarlu, Cheera Prasad, Karlapudi Sreenivasulu |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
Aqueous solution Nanocomposite Mechanical Engineering Metals and Alloys Mineralogy chemistry.chemical_element Sorption 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Catalysis Nickel chemistry.chemical_compound chemistry Mechanics of Materials Materials Chemistry Magnetic nanoparticles Fourier transform infrared spectroscopy Malachite green 0210 nano-technology Nuclear chemistry |
| Zdroj: | Journal of Alloys and Compounds. 700:252-258 |
| ISSN: | 0925-8388 |
| DOI: | 10.1016/j.jallcom.2016.12.363 |
| Popis: | In this work, we have developed a facile, low-cost and ecofriendly method for synthesis of nickel supported iron oxide magnetic nanoparticles (Ni/Fe 3 O 4 MNPs) using Moringa oleifera (MO) leaves extract as reducing and capping agent. The as-synthesized Ni/Fe 3 O 4 nanocomposite was characterized by various physicochemical characterization techniques such as FTIR, powder XRD, XPS, TEM and BET sorption methods. The results show that the Ni/Fe 3 O 4 MNPs were exhibits spherical in shape with the size range of 16–20 nm. The room temperature magnetic measurements of composite clearly evince ferromagnetic natures with saturation magnetization (Ms) of 76.8 emu/g. The catalytic activity of Ni/Fe 3 O 4 MNPs towards degradation of Malachite green (MG) dye was determined by UV–vis spectroscopy. The results show that as-synthesized Ni/Fe 3 O 4 MNPs is an efficient catalyst for the degradation of Malachite green as compared to previous reports. |
| Databáze: | OpenAIRE |
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