▎ 摘　　要

NOVELTY - Preparation of zero-valent iron loaded on graphene hollow nanosphere nanomaterial comprises selecting silica nanosphere and graphene oxide, mixing in deionized water, water bath ultrasonicating for 6-48 hours, centrifuging, and vacuum drying to obtain silica-graphene oxide nanosphere; dispersing nano-zero-valent iron in deionized water to obtain first dispersion system, adding silica-graphene oxide nanosphere and reducing agent, stirring, water bath ultrasonicating for 6-8 hours, centrifuging, and vacuum drying to obtain silica-graphene oxide/zero-valent iron nanosphere; and curing to 300-400 degrees C for 6-24 hours under nitrogen atmosphere, adding to silicon oxide etchant, etching silicon oxide template, centrifuging, and vacuum drying. USE - The method is for preparation of zero-valent iron loaded on graphene hollow nanosphere nanomaterial. ADVANTAGE - The nanomaterial can effectively prevent the zero-valent iron nanomaterial from agglomerating themselves and being corroded during the catalytic degradation of N-nitrosodimethylamine, and has very large specific surface area and very high electronic conductivity which helps to exert the catalytic degradation activity of zero-valent iron nanomaterial on the by-product N-nitrosodimethylamine of disinfection, and improved reproducible degradation efficiency. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a zero-valent iron loaded on graphene hollow nanosphere nanomaterial.