Journal
JOURNAL OF POROUS MATERIALS
Volume 24, Issue 3, Pages 647-655Publisher
SPRINGER
DOI: 10.1007/s10934-016-0301-1
Keywords
NH2-UiO-66; Microwave irradiation; Adsorption; Methylene blue
Funding
- National Natural Science Foundation of China [21406003]
- National 211 Project of Anhui University
- Key projects of Anhui Provincial Department of Education [KJ2016A309]
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The metal-organic frameworks UiO-66 with amine functional groups were synthesized by microwave irradiation, their structures and properties were characterized. The results show that NH2-UiO-66 can be prepared quickly and well-crystallized by microwave-assisted method within 15 min. The amine-functionalized UiO-66 was octahedral crystals of well defined sizes (500-900 nm) and had a high specific surface area about 924.37 m(2) g(-1) and micropore range from 2.0 to 11 nm. The amine-functionalized UiO-66 was thermally stable up to 540 A degrees C stability and exhibited a good combination of methylene blue adsorption. The maximum adsorption capacity reached up to 203.95 mg g(-1). The kinetics and equilibrium of the adsorption process were found to follow the pseudo-second-order kinetic and Langmuir adsorption model, respectively.
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