NDLI: Carbon dioxide adsorption over DIPA functionalized MCM-41 and SBA-15 molecular sieves

Content Provider	Springer Nature Link
Author	Barbosa, Marcela N. Araujo, Antonio S. Galvão, Luzia P. F. C. Silva, Edjane F. B. Santos, Anne G. D. Luz, Geraldo E. Fernandes, Valter J.
Copyright Year	2011
Abstract	The capture of carbon dioxide was carried out using MCM-41 and SBA-15 as adsorbents. These mesoporous materials were synthesized by the hydrothermal method, and subsequently functionalized with the di-iso-propylamine (DIPA). Then, they were characterized by XRD, BET, and TG/DTG. The X-ray diffraction patterns of the synthesized samples showed the characteristic peaks of MCM-41 and SBA-15, indicating that the structures of these materials were obtained. The functionalized samples presented a decrease of the intensities of these peaks, suggesting a decreasing in the structural organization of the material; however, the mesoporous structure was preserved. For the adsorption capacity measurements, the materials were previously saturated with carbon dioxide at 75 °C, and then desorbed in a thermobalance in the temperature range of 25–900 °C, under helium atmosphere. Desorption tests showed that the functionalized MCM-41 presented a weight loss of 7.5 wt%, against 5.9 wt% for SBA-15. The obtained values indicate that these nanostructured materials can be used as adsorbent for carbon dioxide capture.
Starting Page	779
Ending Page	782
Page Count	4
File Format	PDF
ISSN	13886150
Journal	Journal of thermal analysis
Volume Number	106
Issue Number	3
e-ISSN	15728943
Language	English
Publisher	Springer Netherlands
Publisher Date	2011-02-25
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Adsorption of carbon dioxide Mesoporous materials Functionalization Thermogravimetry Measurement Science and Instrumentation Physical Chemistry Polymer Sciences Inorganic Chemistry Analytical Chemistry
Content Type	Text
Resource Type	Article
Subject	Physical and Theoretical Chemistry Condensed Matter Physics

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