A zirconium-based metal-organic framework (MOF), UiO–66, was synthesized to further understand the reactivity of its surface. Motivated by previous MOF research, we are interested in learning more about the role MOF’s porous structure can play in controlled trap and release for future therapeutic drug delivery. We hypothesized that organosilanes would have strong covalent monolayer attachment to the surface of UiO–66. Synthesized and silane-derivitized UiO–66 crystals went through a series of experiments to understand the interactions between the silanes and UiO surface. Powder X-ray diffraction (pXRD) supported UiO synthesis, while X-ray photoelectron spectroscopy (XPS) characterized the surface. In vacuo Ar+ sputtering and temperature-programmed desorption (TPD) evaluated surface bonding strengths. Both a theoretical substrate-overlayer and first order desorption model was employed to interpret results. We have shown that a monolayer of silanes will covalently attach to the surface of UiO–66 giving more insight into the UiO family.

• This report represents the work of one or more WPI undergraduate students submitted to the faculty as evidence of completion of a degree requirement. WPI routinely publishes these reports on its website without editorial or peer review.

Creator

• Berube, Abigail

Publisher

• Worcester Polytechnic Institute

Identifier

• E-project-032323-170857
• 94736

Keyword

• Silane
• XPS
• Surface chemistry
• TPD
• MOF

Advisor

• Grimm, Ronald

Year

• 2023

Date created

• 2023-03-23

Resource type

• Major Qualifying Project

Major

• Chemistry

Source

• E-project-032323-170857

Rights statement

• In Copyright

License

• Creative Commons BY-NC Attribution-NonCommercial 4.0 International

Last modified

• 2023-04-14