Degree Name
MS (Master of Science)
Program
Chemistry
Date of Award
12-2011
Committee Chair or Co-Chairs
Aleksey N. Vasiliev
Committee Members
Jeffrey G. Wardeska, Yu-Lin Jiang
Abstract
Novel highly functionalized hybrid organic-inorganic materials were synthesized by polycondensation of bis[3-(trimethoxysilyl)propyl]amine in presence of cationic and anionic surfactants. Reaction media strongly affected gelation time. Thus, in basic media gelation occurred immediately while acid increased gelation time. Material structures were studied by IR spectroscopy, porosimetry, XRD, and SAXS methods. In spite of the absence of an inorganic linker, obtained bridged silsesquioxanes had mesoporous structure. A material prepared in the presence of dodecylamine as a template had higher surface area and narrow pore size distribution while the use of sodium dodecylbenzene sulfate resulted in formation of mesopores with wide size ranges. Accessibility of surface amine groups in silsesquioxanes was studied for molecules of acidic nature and different sizes: HCl, CO2 and picric acid. High contents of accessible amine groups in these materials make them prospective adsorbents for post-combustion CO2 capture.
Document Type
Thesis - unrestricted
Recommended Citation
Ojo, Kolade Omoniyi, "Mesoporous Functionalized Materials for Post-Combustion Carbon Dioxide Capture." (2011). Electronic Theses and Dissertations. Paper 1378. https://dc.etsu.edu/etd/1378
Copyright
Copyright by the authors.