Abstract

The applied performance of covalent organic frameworks (COFs) is usually limited by their powder form and poor recyclability. In this work, natural balsa wood was employed as substrate for anchoring COFs nanoparticles. By in situ growth strategy, COFs was uniformly deposited on the microchannels of wood to construct Wood/COF composite with unique porous structure. The COFs grafted on the microchannels and porous structure of wood show excellent adsorption capacity in wastewater and oil-water separation. Moreover, the composite exhibited exceptional recyclability, stability and solvent resistance performance. Such wood-based composite is environmentally friendly and low cost, and we believe it has broad applications for practical wastewater treatment.

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