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https://hdl.handle.net/2440/116355
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Type: | Journal article |
Title: | Functionalized UiO-66 by single and binary (OH)₂ and NO₂ groups for uptake of CO₂ and CH₄ |
Other Titles: | Functionalized UiO-66 by single and binary (OH)(2) and NO(2) groups for uptake of CO(2) and CH(4) |
Author: | Rada, Z. Abid, H. Shang, J. Sun, H. He, Y. Webley, P. Liu, S. Wang, S. |
Citation: | Industrial and Engineering Chemistry Research, 2016; 55(29):7924-7932 |
Publisher: | American Chemical Society |
Issue Date: | 2016 |
ISSN: | 0888-5885 1520-5045 |
Statement of Responsibility: | Zana Hassan Rada, Hussein Rasool Abid, Jin Shang, Hongqi Sun, Yingdian He, Paul Webley, Shaomin Liu and Shaobin Wang |
Abstract: | The metal-organic frameworks UiO-66 with single or binary −(OH)₂ and −NO₂ functional groups were synthesized, and their structures and properties were characterized by Fourier transform infrared spectroscopy, X-ray diffraction, thermogravimetric analysis, scanning electron microscopy, and nitrogen adsorption isotherms. Their performances in CO₂ and CH₄ adsorption at high pressures and different temperatures (273 and 298 K) were also determined. Singly functionalized UiO-66-(OH)₂ had a lower thermal stability than UiO-66-NO₂, but the thermal stability of binary UiO-66-(OH)₂-NO₂ significantly improved to 650 K. The binary-functionalized samples UiO-66-(OH)₂-NO₂ and UiO-66-NO₂-(OH)₂ displayed higher CH₄ and CO₂ adsorption than UiO-66-(OH)₂ and UiO-66-NO₂. The CO₂ adsorption capacities of UiO-66-(OH)₂-NO₂ and UiO-66-NO₂-(OH)₂ were 4.65 and 7.35 mmol/g, respectively, at 273 K and 900 kPa. UiO-66-(OH)₂ had a higher separation factor for selective separation of CO₂ from CH₄, especially at low pressures up to 100 kPa; the separation factor ranged from 4.9 at about 100 kPa to 5.8 at 60 kPa. |
Rights: | © 2015 American Chemical Society |
DOI: | 10.1021/acs.iecr.5b04061 |
Published version: | http://dx.doi.org/10.1021/acs.iecr.5b04061 |
Appears in Collections: | Aurora harvest 3 Chemical Engineering publications |
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