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Showing 1 to 20 of 33 for “"UiO-66"”.
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Synthesis and Catalytic Applications of Ni-Based Single-Atom and Nanoparticle Catalysts Supported on UiO-66-NH2
… we focus on the C1-level transformation of CO₂. UiO-66-NH2, as a novel metal-organic framework, possesses unique features such as excellent specific surface area and remarkable CO₂ adsorption capacity. Using it as a catalyst support for CO₂ conversion represents a promising approach. Nickel was …
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Metal organic frameworks as sorbents for volatile organic compounds
… and gas sensing. In this work, MOF thin films of UiO-66-R, where R = -H, -NH2, and-NO2, were fabricated onto Au-coated Si wafers and Au-coated quartz crystal microbalance surfaces using a vapor-assisted conversion method. The films were then characterized by scanning electron microscopy, powder …
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A CALORIMETRIC STUDY OF LIGHT HYDROCARBON ADSORPTION ON METAL-ORGANIC FRAMEWORKS
… main MOF structures were modified and tested: UiO-66, which has two types of pores in the structure and can support various functional groups on the organic linker, and MOF-74, which can support a multi-metal cluster. The adsorption of C2 hydrocarbons on UiO-66 and UiO-66 functionalized with …
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Investigation of anthracycline based topoisomerase II inhibitors in triple negative breast cancer
… KP71 and two metal organic frameworks (MOFs), UiO-66 and UiO-66-NH2, loaded with MTX, for TNBC treatment, in comparison to free MTX. KP71 exhibited significant anti-proliferative activity in BCa cell lines (MDA-MB-231, MDA-MB-468, and MCF7) using the 3-[4, 5-dimethylthiazol-2-yl]-2,5 diphenyl …
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IMPLEMENTATION OF METAL-ORGANIC FRAMEWORK ON MEMBRANE DEVELOPMENT FOR LIQUID SEPARATION : INVESTIGATION, CHARACTERIZATION AND APPLICATION
… (IV)-carboxylate MOFs (Zr-MOFs), namely UiO-66 and its derivatives, have been employed in the fabrication of high-performance MOF-based membranes. Benefiting from the exceptional water stability of the UiO-66 nanoparticles, the resultant membranes have demonstrated long-term stability in …
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Metal-organic frameworks as intracellular delivery vectors
… In the first instance, a zirconium-based MOF, UiO-66, was synthesised and utilised as an intracellular delivery vector for trehalose, a disaccharide with cryoprotective properties when present in the cytosol. This MOF demonstrated very high trehalose weight loadings compared to other trehalose …
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Synthesis and engineering of metal-organic frameworks for liquid phase applications
… for micro-pollutant capture purposes. UiO-66 MOF showed poor stability in basic environment followed by moderate instability in neutral conditions. On the other hand, the inclusion of functional groups on UiO-66 confer a metal cluster shielding effect which can effectively prevent the …
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Mechanochemistry of metal-organic frameworks under compression
… has been examined on a prototypical MOF, UiO-66. Upon bulk compression at 1.9 GPa, the effective number for Zr-O bonds between Zr(IV) ions and carboxylate groups in UiO-66 decreased from 4.0 to 1.9, as determined by X-ray absorption spectra (XAS), and the internal free volume was …
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Temperature Programmed Desorption and Infrared Spectroscopic Studies of Interfacial Hydrogen Bonds for Small Molecules Adsorbed on Silica and Within Metal Organic Frameworks
… hydroxyl-functionalized surfaces (silica and UiO-66). Our approach utilized infrared spectroscopy to study specific surface-molecule interactions and temperature-programmed desorption to measure activation energies of desorption. 2-CEES has two polar functional groups, the chloro and thioether …
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Intrinsic and Extrinsic Catalysis in Zirconium-based Metal-Organic Frameworks
… screening study on a zirconium-based MOF, UiO-66. One of the most commonly studied MOFs, UiO-66 provides an excellent platform for synthetic modulation. Particle size and defect level were measured of 26 synthetic variations and synthetic conditions were found to isolate changes in defect …
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Synthesis and Applications of Monolithic Metal-Organic Frameworks
… for the preparation of the archetypal Zr-MOF UiO-66 (Zr6O4(OH)4(1,4-benzenedicarboxylate)6) as a robust and porous monolith, monolithUiO-66. A novel capacity to control bulk density and pore-size distribution in the macroscopic monolith, via the synthetic inclusion of non-crystalline …
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Fundamental Studies of the Uptake and Diffusion of Sulfur Mustard Simulants within Zirconium-based Metal-Organic Frameworks
… between 2-CEES and an amine-functionalized MOF, UiO-66-NH2. Although the presence of water adsorbed within UiO 66 NH2 under ambient conditions may assist in the reactive adsorption of 2-CEES, the reaction proceeded under anhydrous conditions.
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Doping of Metal Organic Framework (UiO) and for N02 adsorption at ambient Conditions
… Zirconium-based Metal Organic Framework (Zr-MOF) UiO-66 and UiO-67 make them good candidates for metal or amine decoration. The objective of this work was to investigate the effect of metal or amine doping (direct synthesis) on the textural properties and adsorption capabilities of UiO in both …
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Investigating the parameters of metal-organic framework crystal growth control for reverse osmosis membrane nanofillers and direct air capture of CO2
… air capture (DAC) solid sorbents, including UiO-66, MIL-101-Cr, and Mg-MOF-74, to preserve CO2 uptake capacities between lab and industrial scales.
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Pressure Swing Assisted Desorption for Atmospheric Water Collection
… The results from the experiment using the MOF UiO-66 as the sorbent showed that the combined procedure would indeed be the fastest, potentially twice as fast as a purely thermal desorption method and five times faster than a purely depressurized desorption method. The next step following this …
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Spectroscopic Studies of Small Molecule Adsorption and Oxidation on TiO2-Supported Coinage Metals and Zr6-based Metal-Organic Frameworks
… with the metal-organic framework (MOF), UiO-66. The adsorption of CO onto heterogeneous surfaces effectively characterizes surfaces because the C-O bond vibrates differently depending on the nature of the surface site. Therefore, CO adsorption was used within the high vacuum environment …
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Rh-Based Catalysis Chemistry of Aqueous-Phase Nitrogen Treatment Reactions
… water. In this work, the sorption properties of UiO-66 metal-organic frameworks (MOFs) with varying defect were studied for the removal of PFOS. Large pore defects (~16 and ~20 Å) within the framework were critical to increasing the capacity due to higher internal surface area and an increased …
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Microporous Polymer-Metal Organic Framework (MOF) Hybrid Materials for Separations
… based on PIM-1 and its derivatives, along with UiO MOFs, for gas and organic solvent-based separations. The studies focus on enhancing polymer–MOF interfacial compatibility, understanding penetrant transport, and addressing key challenges in MMM design and fabrication. A longstanding challenge …
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Hydrogen physisorptive storage in metal-organic frameworks (MOFs)
… (Zn-MOF, MOF-5), zirconium-based MOF (Zr-MOF, UiO-66) and chromium-based MOF (Cr-MOF, MIL-101). These MOFs were chosen because they were envisaged as potential hydrogen storage options. MOF-5 in particular was seen as an ideal starting point for this study as it has been reported to have high …
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Controlling the Properties of Polymer Metal-Organic Frameworks and Cages Through Polymer Ligand Design
… This strategy produces uniform polyMOF-5 and polyUiO66 nanoparticles with sizes down to 20 nm, displaying exceptional structural and colloidal stability. Chapter 3: Radical PolyMOFs: A Role for Ligand Dispersity in Enabling Crystallinity Reported here is the synthesis of polyMOF ligands featuring …
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