Trace removal of benzene vapour using double-walled metal–dipyrazolate frameworks
| العنوان: | Trace removal of benzene vapour using double-walled metal–dipyrazolate frameworks |
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| المؤلفون: | Tao He, Xiang-Jing Kong, Zhen-Xing Bian, Yong-Zheng Zhang, Guang-Rui Si, Lin-Hua Xie, Xue-Qian Wu, Hongliang Huang, Ze Chang, Xian-He Bu, Michael J. Zaworotko, Zuo-Ren Nie, Jian-Rong Li |
| المصدر: | Nature Materials. 21:689-695 |
| بيانات النشر: | Springer Science and Business Media LLC, 2022. |
| سنة النشر: | 2022 |
| مصطلحات موضوعية: | Volatile Organic Compounds, Mechanics of Materials, Mechanical Engineering, Benzene, General Materials Science, Adsorption, Gases, General Chemistry, Condensed Matter Physics, Metal-Organic Frameworks |
| الوصف: | In principle, porous physisorbents are attractive candidates for the removal of volatile organic compounds such as benzene by virtue of their low energy for the capture and release of this pollutant. Unfortunately, many physisorbents exhibit weak sorbate–sorbent interactions, resulting in poor selectivity and low uptake when volatile organic compounds are present at trace concentrations. Herein, we report that a family of double-walled metal–dipyrazolate frameworks, BUT-53 to BUT-58, exhibit benzene uptakes at 298 K of 2.47–3.28 mmol g−1 at 2BDP = 1,4-di(1H-pyrazol-4-yl)benzene), captures trace levels of benzene, producing an air stream with benzene content below acceptable limits. Furthermore, BUT-55 can be regenerated with mild heating. Insight into the performance of BUT-55 comes from the crystal structure of the benzene-loaded phase (C6H6@BUT-55) and density functional theory calculations, which reveal that C–H···X interactions drive the tight binding of benzene. Our results demonstrate that BUT-55 is a recyclable physisorbent that exhibits high affinity and adsorption capacity towards benzene, making it a candidate for environmental remediation of benzene-contaminated gas mixtures. |
| تدمد: | 1476-4660 1476-1122 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::05becea92d933b9da6beed159de86ec5 https://doi.org/10.1038/s41563-022-01237-x |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....05becea92d933b9da6beed159de86ec5 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 14764660 14761122 |
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