▎ 摘　　要

NOVELTY - Sensitive graphene oxide aerogel preparation involves ultrasonically dispersing graphene in potassium permanganate solution followed by filtering and drying to prepare graphene oxide, and then mixing polyacrylic acid, polypyrrole and phenolic resin by ultrasonic dispersion or mechanical stirring for 10-30 minutes. The obtained graphene oxide is uniformly mixed with the obtained mixture. USE - Method for preparing a pH-sensitive graphene oxide aerogel. ADVANTAGE - The method prepares the pH-sensitive graphene oxide aerogel in a simple, cost-effective and eco-friendly manner with good water absorption, structural stability, easy operation, easy preservation and broad application prospect. DETAILED DESCRIPTION - Sensitive graphene oxide aerogel preparation involves ultrasonically dispersing graphene in potassium permanganate solution followed by filtering and drying to prepare graphene oxide, and then mixing polyacrylic acid, polypyrrole and phenolic resin by ultrasonic dispersion or mechanical stirring for 10-30 minutes. The obtained graphene oxide is uniformly mixed with the obtained mixture. The obtained mixed solution is heat-treated in a hydrothermal reaction vessel at 100-150 degrees C for 1-10 hours, and then dried and cooled to obtain a graphene oxide aerogel. The graphene oxide aerogel is immersed in ammonia water at 0-150 degrees C, soaked for 1-36 hours, and freeze-dried to obtain the pH-sensitive graphene oxide aerogel.