▎ 摘　　要

NOVELTY - Modified starch/graphene oxide composite aerogel (I) is new. USE - (I) is useful for preparation of heavy metal ion including lead(II) ion adsorbent (claimed). ADVANTAGE - (I) is prepared by sol-gel method; has obvious three-dimensional structure, rich pore structure, thick pore wall, high specific surface area, high porosity, light weight and stable structure, excellent conditions for adsorbing lead(II) and better adsorption effect on lead(II); and effectively improves the shortcomings of the existing starch-based aerogel, including poor mechanical strength, weak molecular chain interaction in the gel network, and insufficient toughness. DETAILED DESCRIPTION - Modified starch/graphene oxide composite aerogel of formula (I) is new. m = 1-10; and n = 1-20. An INDEPENDENT CLAIM is also included for preparation of (I).