Rapid room temperature conversion of hydroxy double salt to MOF-505 for CO2 capture
| Autor: | Yongwei Chen, Daofei Lv, Qibin Xia, Zhong Li, Qiangqiang Xiao, Houxiao Wu, Feier Li |
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| Rok vydání: | 2019 |
| Předmět: |
Pore size
Materials science Solvothermal synthesis chemistry.chemical_element 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Co2 adsorption 01 natural sciences Copper 0104 chemical sciences law.invention Double salt Adsorption Chemical engineering chemistry law General Materials Science Crystallization 0210 nano-technology |
| Zdroj: | CrystEngComm. 21:165-171 |
| ISSN: | 1466-8033 |
| DOI: | 10.1039/c8ce01489b |
| Popis: | Given the fact that solvothermal synthesis is the most common synthetic method to obtain metal–organic frameworks (MOFs) on a gram scale, it still remains a great challenge to produce MOFs in a scalable and sustainable synthetic process. In this work, we develop a facile and rapid synthesis of copper-based MOF-505 by the exploitation of layered (Zn,Cu) hydroxy double salt as the intermediate for efficient MOF-505 crystallization at room temperature, in which [(Zn,Cu)(OH)NO3] is synthesized by reacting ZnO with Cu(NO3)2. Under an optimized reaction time of 25 min, MOF-505-25 exhibits a Brunauer–Emmett–Teller (BET) surface area of 1076 m2 g−1 and the pore size is narrowly distributed at 5.9 and 8.0 A. With respect to CO2 adsorption and separation performance, MOF-505-25 shows a moderate CO2 uptake of 3.51 mmol g−1 at 298 K and 100 kPa and high CO2/CH4 and CO2/N2 adsorption selectivities of 7 and 29. Particularly, the formation of MOF-505 can be completed within a short reaction time (less than 30 min) whilst maintaining high quality. This facile and rapid room temperature synthetic procedure would pave the way for promoting the development of MOF materials large-scale production with minimizing the energy input. |
| Databáze: | OpenAIRE |
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