期刊
MICROPOROUS AND MESOPOROUS MATERIALS
卷 225, 期 -, 页码 116-121出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.micromeso.2015.12.004
关键词
Metal-organic framework; NH2-MIL-53; Ordered mesoporous silica; Core-shell; Adsorption
类别
资金
- Spanish Ministry of Economy and Competitiveness [MAT2013-40556-R]
- Regional Government of Aragon
- ESF
Ordered mesoporous silica-NH2-MIL-53(Al) core shell spheres of about 4 gm in diameter have been synthesized by seeding the corresponding mesoporous silica spheres (MSSs) with crystals of NH2-MIL53(Al) and subsequent secondary crystal growth into a MOF shell. The morphology of the particles was analyzed by SEM, while TGA, EDX and XRD characterizations gave information on the composition and structure of this material and the activation of the MOF. N-2 adsorption analysis revealed that the NH2-MIL-53(Al) shell controlled the access of guest molecules into the hydrophilic silica mesoporous structure, while the breathing behavior of the microporous NH2-MIL-53(Al) shell was confirmed by CO2 adsorption isotherms. (C) 2015 Elsevier Inc. All rights reserved.
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