Defect Engineering Enhancing Piezoelectric Catalytic Activity of Covalent Organic Framework Matrix Composites for Uranium Removal

Small, Год журнала: 2024, Номер unknown

Опубликована: Дек. 1, 2024

Abstract Piezoelectric catalysis is an emerging green strategy, but the existing piezoelectric heterostructures are not sufficient in performance for catalytic reduction of low‐reduction potential uranium under harsh conditions. This study innovatively employs a defect heterogeneous engineering wherein covalent organic frameworks (COFs) grown situ on surface zinc oxide (ZnO) via Schiff base reactions, and defects introduced into COF shell layer imine exchange reactions to construct D‐COF@ZnO removal. The comprehensive shows that increases asymmetry induced polarization material promote charge redistribution, thus significantly improves activity catalysis. In addition, optimizes nanosize expose richer array active sites, resulting ultra‐fast U(VI) removal kinetics ultra‐high capacity. actual nuclear wastewater settings, demonstrates outstanding selective efficacy uranium, manifesting its considerable application efficiency superiority. strategy holds profound implications facilitating technology environmental protection domains such as removal, value.

Язык: Английский

Dual Fillers ZrO2/BaTiO3 Incorporated PVDF-HFP Nanofiber Composite for Enhanced Piezoelectric Energy Harvesting and Piezo Catalytic reduction of Hexavalent Chromium

Materials Today Communications, Год журнала: 2024, Номер 41, С. 110904 - 110904

Опубликована: Ноя. 4, 2024

Язык: Английский