Industrially Scalable and Refreshable Photocatalytic Foam

Abstract Semiconductor photocatalysis has been a promising candidate for micropollutant degradation in environmental remediation. In the past 50 years, TiO 2 nanomaterials‐based photocatalytic devices have been practically applied to ex‐situ sewage treatment. This work promotes the practical photocatalytic application of TiO 2 nanomaterials by successfully fabricating a scalable and refreshable photocatalytic foam. The fabrication is done by firmly immobilizing catalyst nanoparticles on ethylene‐vinyl acetate (EVA) foam. The immobilization replaces commonly used ZnO promoter by TiO 2 catalyst nanoparticles in raw materials during industrial foaming production processes. The as‐fabricated photocatalytic foam exhibits excellent photocatalytic activity, stability, and refreshability in in‐situ micropollutant degradation.