▎ 摘　　要

NOVELTY - Preparing graphene oxide sponge with function of decomposing formaldehyde comprises (1) preparing graphene oxide aqueous solution with 10-55% oxygen content, (2) preparing nano-titanium dioxide aqueous solution of 0.1-10 wt.% concentration, (3) mixing the graphene oxide aqueous solution and nano-titanium dioxide aqueous solution 10: 1, stirring the graphene oxide aqueous solution, adding nano-titanium dioxide aqueous solution, stirring for 15-30 minutes to obtain the mixture solution, (4) adding aqueous resin in the mixture solution, stirring for a period of time for ultrasonic dispersion, adding into specific mold for freezing and drying, (5) calcining and activating the mixture obtained by freezing and drying at high temperature to obtain the graphene oxide sponge with decomposing formaldehyde function USE - The method is useful for preparing graphene oxide sponge. ADVANTAGE - The method has no powder dropping, strong decomposing formaldehyde capability and recycling.