Multiple functionalities of Ni nanoparticles embedded in carboxymethyl guar gum polymer: catalytic activity and superparamagnetism
| العنوان: | Multiple functionalities of Ni nanoparticles embedded in carboxymethyl guar gum polymer: catalytic activity and superparamagnetism |
|---|---|
| المؤلفون: | Sudipta Bandyopadhyay, Md. A. Ahmed, Ankur Bordoloi, Debasmita Sardar, S.K. Neogi, Chinnakonda S. Gopinath, Tanushree Bala, Manideepa Sengupta, Ruchi Jain |
| المصدر: | Applied Surface Science. 405:231-239 |
| بيانات النشر: | Elsevier BV, 2017. |
| سنة النشر: | 2017 |
| مصطلحات موضوعية: | chemistry.chemical_classification, Materials science, Composite number, General Physics and Astronomy, Nanoparticle, 02 engineering and technology, Surfaces and Interfaces, General Chemistry, Polymer, 010402 general chemistry, 021001 nanoscience & nanotechnology, Condensed Matter Physics, 01 natural sciences, 0104 chemical sciences, Surfaces, Coatings and Films, Catalysis, chemistry, X-ray photoelectron spectroscopy, Chemical engineering, Composite material, Fourier transform infrared spectroscopy, 0210 nano-technology, Spectroscopy, Superparamagnetism |
| الوصف: | Composites comprising of metallic nanoparticles in polymer matrices have allured significant importance due to multifunctionalities. Here a simple protocol has been described to embed Ni nanoparticles in carboxymethyl guar gum (CMGG) polymer. The composite formation helps in the stabilization of Ni nanoparticles which are otherwise prone towards aerial oxidation. Further the nanoparticles retain their superparamagnetic nature and catalytic capacity. Ni-Polymer composite catalyses the reduction of 4-Nitrophenol to 4-Aminophenol very efficiently in presence of NaBH4, attaining a complete conversion under some experimental conditions. Ni-Polymer composite is well characterized using UV–vis spectroscopy, FTIR, XPS, powder XRD, TGA, SEM and TEM. A detailed magnetic measurement using superconducting quantum interference device-vibrating sample magnetometer (SQUID-VSM) reveals superparamagnetic behaviour of the composite. |
| تدمد: | 0169-4332 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::ce8f7a46f486a3b3ecb33f0cc8f73d17 https://doi.org/10.1016/j.apsusc.2017.01.229 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........ce8f7a46f486a3b3ecb33f0cc8f73d17 |
| قاعدة البيانات: | OpenAIRE |
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