Fabrication and characterization of a novel nanoporous nanoaerogel based on gelatin as a biosorbent for removing heavy metal ions
| العنوان: | Fabrication and characterization of a novel nanoporous nanoaerogel based on gelatin as a biosorbent for removing heavy metal ions |
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| المؤلفون: | Hossein Sadeghi, Edris Ebrahimi, Nina Farmani, Farzad Mirzaie, Narjes Nematidil, Shabnam Nezami, Mohammad Sadeghi |
| المصدر: | Journal of Sol-Gel Science and Technology. 97:721-733 |
| بيانات النشر: | Springer Science and Business Media LLC, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Materials science, food.ingredient, Metal ions in aqueous solution, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, Gelatin, Biomaterials, chemistry.chemical_compound, Adsorption, food, Materials Chemistry, Fourier transform infrared spectroscopy, Porosity, Nanoporous, Aerogel, General Chemistry, 021001 nanoscience & nanotechnology, Condensed Matter Physics, 0104 chemical sciences, Electronic, Optical and Magnetic Materials, Montmorillonite, chemistry, Chemical engineering, Ceramics and Composites, 0210 nano-technology |
| الوصف: | In this research, we proposed a synthesis of nano-silica aerogel (NSA, S1–S3) and nano-silica aerogel gelatin (NSA-G, S4–S6), which were hybrid aerogel by sol–gel method via ambient pressure drying. The aerogels’ backbone was modified by montmorillonite (MMT) in NSA and for NSA-G gelatin (G) and MMT were used to stabilize their building block. Also, free hydroxyl groups on their surface were changed to TMS-O and became more hydrophobic aerogels. The porosity results showed that the density of the optimum aerogels (S2 and S5) ranged from 0.084 to 0.047 g/cm3. It was also found that the hydrophobicity of the NSA-G aerogel decreased with increasing the content of gelatin into the silica aerogels. However, these aerogels were fully characterized by FTIR, FESEM, EDS, XRD, BET, and TGA/DTA analysis and they used as the adsorbent of Cu2+ and Ni2+ ions in aqueous media. The prepared aerogels effectively could remove these heavy metals from the aqueous media and NSA-G absorbent also illustrated a favorable result for adsorption. Also, the recyclability test for four adsorption–desorption of aerogels cycles was examined and they had a good effect even after the fourth cycle. |
| تدمد: | 1573-4846 0928-0707 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::7fd5721b2cd5e3e7c63e66f201aca7a6 https://doi.org/10.1007/s10971-020-05439-0 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........7fd5721b2cd5e3e7c63e66f201aca7a6 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15734846 09280707 |
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