In this work. magnetic CuFe2O4/Ag nanoparticles activated by porous covalent organic frameworks (COF) was fabricated to evaluate the heterogenous reduction of 4-nitrophenol (4-NP). The core-shell CuFe2O4/Ag@COF was successfully prepared by polydopamine reduction of silver ions on CuFe2O4 nanoparticles. followed by COF layer condensation. https://www.bekindtopets.com/hot-save-Fresh-n-Clean-Scented-Shampoo-15-1-Concentrate-Crisp-Linen-Gallon-great-choice/