Microstructural and rheological investigation of upcycled metal-organic frameworks stabilized Pickering emulsions

Stabilizing Pickering emulsions with metal-organic frameworks (MOFs) is a known way to incorporate them into hierarchically porous materials. Studies generally focus on their final properties and emulsion microstructures are rarely precisely described. Our hypothesis was that characterizing the microstructural rheological of stabilized solely by Al-based MOFs (MIL-96) particles would provide insights how control stability workability for potential industrial applications. MIL-96(Al) particles, obtained from Li-ion battery waste were used stabilize paraffin-in-water emulsions. The influence formulation parameters (paraffin/water volume ratio content) investigated analysed using optical microscopy, cryo-scanning electron microscopy measurements. efficiently up 80% internal phase. low paraffin fraction had large droplets fluid gel-like texture. higher fractions more compact two-step flow curves. In this system, excess aggregated in continuous phase as flocs interact adsorbed at paraffin-water interface, creating secondary network has be broken resume. This behaviour may interesting investigate other MOF-stabilized