Preparation of Highly Porous Metal–Organic Framework Beads for Metal Extraction from Liquid Streams
| العنوان: | Preparation of Highly Porous Metal–Organic Framework Beads for Metal Extraction from Liquid Streams |
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| المؤلفون: | Wendy L. Queen, Olga Trukhina, Maria A. Syzgantseva, Ilia Kochetygov, Emad Oveisi, Daniel T. Sun, Li Peng, Olga A. Syzgantseva, Anita Justin, Guanchu Lu, Hassan Abedini, Shuliang Yang |
| المصدر: | Journal of the American Chemical Society. 142:13415-13425 |
| بيانات النشر: | American Chemical Society (ACS), 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | fungi, Composite number, Extraction (chemistry), General Chemistry, Bead, 010402 general chemistry, 01 natural sciences, Biochemistry, 6. Clean water, Catalysis, 0104 chemical sciences, chemistry.chemical_compound, Colloid and Surface Chemistry, Monomer, Microcrystalline, Chemical engineering, chemistry, Polymerization, visual_art, visual_art.visual_art_medium, Metal-organic framework, Acrylic acid |
| الوصف: | Metal-organic frameworks (MOFs) offer great promise in a variety of gas- and liquid-phase separations. However, the excellent performance on the lab scale hardly translates into pilot- or industrial-scale applications due to the microcrystalline nature of MOFs. Therefore, the structuring of MOFs into pellets or beads is a highly solicited and timely requirement. In this work, a general structuring method is developed for preparing MOF-polymer composite beads based on an easy polymerization strategy. This method adopts biocompatible, biodegradable poly(acrylic acid) (PAA) and sodium alginate monomers, which are cross-linked using Ca2+ ions. Also, the preparation procedure employs water and hence is nontoxic. Moreover, the universal method has been applied to 12 different structurally diverse MOFs and three MOF-based composites. To validate the applicability of the structuring method, beads consisting of a MOF composite, namely Fe-BTC/PDA, were subsequently employed for the extraction of Pb and Pd ions from real-world water samples. For example, we find that just 1 g of Fe-BTC/PDA beads is able to decontaminate >10 L of freshwater containing highly toxic lead (Pb) concentrations of 600 ppb while under continuous flow. Moreover, the beads offer one of the highest Pd capacities to date, 498 mg of Pd per gram of composite bead. Furthermore, large quantities of Pd, 7.8 wt %, can be readily concentrated inside the bead while under continuous flow, and this value can be readily increased with regenerative cycling. |
| تدمد: | 1520-5126 0002-7863 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::71f82dc0d09cc70be8e701bcd8cd2dac https://doi.org/10.1021/jacs.0c02371 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi.dedup.....71f82dc0d09cc70be8e701bcd8cd2dac |
| قاعدة البيانات: | OpenAIRE |
Find this issue from the American Chemical Society | تدمد: | 15205126 00027863 |
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