LAUSR

Herein, we present the fabrication of reduced graphene oxide (RGO) templated polymer composites for chemical removal of gaseous formaldehyde under ambient conditions. The chemical removal of formaldehyde is achieved by a nucleophilic addition reaction between formaldehyde and aminooxy groups on the polymer chain ends to form the oxime bonds with the only byproduct of H2 O. RGO is essential since it not only has an ultra-large surface area, but also can act as a perfect template for immobilizing pyrene-terminated and aminooxy-functionalized polymers via strong π-π stacking interactions, while melamine foam provides a three-dimensional skeleton for loading RGO/polymer composites to afford a porous 3D structure for efficient formaldehyde removal. Since the oxime bond can be cleaved into aminooxy group in acidic media, the RGO/polymer composite could be regenerated for repeatable usage, which shows excellent performance of adsorbing 14 mg of formaldehyde by 100 mg of the polymer at ambient condition. This article is protected by copyright. All rights reserved.