Pickering emulsion-embedded hierarchical solid-liquid hydrogel spheres for static and flow photocatalysis

Pickering emulsion and TiO2 are subtle assembled by one-step gelation to form the gel sphere with strong adsorption and high catalytic activity. The gel sphere solve the difficulty recovery of powder catalysts, enhance the stability of the Pickering emulsion, and can be used as column filler to build flow photocatalytic systems.