Torlon-MOF Composite Films Coated on Cordierite Monoliths and their CO2 Adsorption Performance
Department
Chemical and Biochemical Engineering
Major
Chemical Engineering
Research Advisor
Rezaei, Fateme
Advisor's Department
Chemical and Biochemical Engineering
Funding Source
2016 NASA-Missouri Space Grant Consortium (NASA-MSGC) award as well as Opportunities for Undergraduate Research Experiences (OURE)
Abstract
In our previous work we demonstrated immobilization of metal-organic frameworks (MOFs) on monolithic substrates by various techniques including layer-by-layer + secondary growth and in situ dip coating. Although these earlier methods showed promising results, the MOFs weight loading did not exceed 55 wt%. Here we demonstrate the improvement in coating a thicker film of MOF on the monolith walls using a novel technique that involves pre-seeding MOF powder onto the monolith using a Torlon polymer solution. This coating procedure is not only simpler and eliminates the complexity of previously reported procedures, but also results in higher MOF loadings. Whereas the earlier loading was 52 wt% for Ni-MOF 74 and 55 wt% for UTSA-16, the new loading has been found to be ~73 wt% for Ni-MOF 74 and a maximum of ~80% for UTSA-16. In addition, the substrates treated with this new method have shown improved CO2 capacities with similar kinetics to that of the earlier method. This facile and simple method opens up fascinating possibilities for scalable fabrication of MOF-coated monoliths with different properties tailored to various gas separation applications.
Research Category
Engineering
Presentation Type
Poster Presentation
Document Type
Poster
Location
Upper Atrium/Hall
Presentation Date
11 Apr 2017, 1:00 pm - 3:00 pm
Torlon-MOF Composite Films Coated on Cordierite Monoliths and their CO2 Adsorption Performance
Upper Atrium/Hall
In our previous work we demonstrated immobilization of metal-organic frameworks (MOFs) on monolithic substrates by various techniques including layer-by-layer + secondary growth and in situ dip coating. Although these earlier methods showed promising results, the MOFs weight loading did not exceed 55 wt%. Here we demonstrate the improvement in coating a thicker film of MOF on the monolith walls using a novel technique that involves pre-seeding MOF powder onto the monolith using a Torlon polymer solution. This coating procedure is not only simpler and eliminates the complexity of previously reported procedures, but also results in higher MOF loadings. Whereas the earlier loading was 52 wt% for Ni-MOF 74 and 55 wt% for UTSA-16, the new loading has been found to be ~73 wt% for Ni-MOF 74 and a maximum of ~80% for UTSA-16. In addition, the substrates treated with this new method have shown improved CO2 capacities with similar kinetics to that of the earlier method. This facile and simple method opens up fascinating possibilities for scalable fabrication of MOF-coated monoliths with different properties tailored to various gas separation applications.
