期刊
CHEMICAL ENGINEERING JOURNAL
卷 334, 期 -, 页码 780-788出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2017.10.080
关键词
Activated carbon (Maxsorb-III); MIL-101(Cr) MOF; Composite adsorbent; Adsorbent characteristics; CH4 and CO2 uptakes
资金
- Ministry of Education (MOE), Singapore [MOE 2014-T2-2-061]
We have designed and developed carbon-based metal organic framework (MOF) composite for CH4 storage and CO2 capture. The proposed composite structure namely MAX-MIL was synthesized by in situ incorporation of activated carbon powder (type Maxsorb-III) in MIL-101(Cr) MOF structure via fluorine free hydrothermal reaction method. The porous properties, structure, morphology and thermal stability, chemical functionalities of MAX-MIL composite were measured by N-2 adsorption/desorption data, X-ray diffraction (XRD), scanning electron microscopy (SEM), thermogravimetric analysis (TGA) and Fourier transform infrared spectroscopy (FTIR) analysis. The gravimetric and volumetric uptakes of CH4 and CO2 onto Maxsorb-III, MIL-101(Cr) MOF and MAX-MIL composite were experimentally measured. The results show that the composite MAX-MIL adsorbs more CH4 and CO2 as compared with original MIL-101(Cr) MOF. The isotherm results provide a basis to identify the importance of addition of small amount of Maxsorb-III into the metal organic frameworks for increasing both volumetric and gravimetric uptakes of CH4 and CO2.
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