▎ 摘　　要

NOVELTY - A nanographene composition comprises nanographene material prepared by dispersing graphene oxide and hydroxy carbon nanotubes in alkane solvent to form suspension, sealing, adding calcium oxide, stirring, warming, leaving still, spraying obtained graphene oxide carbon nanotubes mixture into closed container, heating, reducing the modified graphene oxide with a reducing agent in the closed container to obtain modified graphene sponge, crushing, mixing with tantalum oxide in alkane solvent, drying to obtain nanographene material. USE - Nanographene composition. ADVANTAGE - The nanographene composition effectively eliminates organic pollutants. DETAILED DESCRIPTION - Nanographene composition comprises nanographene material prepared by fully dispersing mixture of graphene oxide and hydroxy carbon nanotubes in alkane solvent to form suspension, sealing the suspension in stirred container, adding 1-30 ppm calcium oxide, stirring, warming up to 80-100 degrees C, leaving still at room temperature after 3-10 hours, obtaining graphene oxide carbon nanotubes mixture, spraying the graphene oxide carbon nanotubes mixture into a closed container, setting the container at pressure of less than 0.1 MPa and temperature of 50-140 degrees C, obtaining modified graphene oxide, reducing the modified graphene oxide with a reducing agent in the closed container to obtain modified graphene sponge, crushing the modified graphene sponge to 1-10 microns, mixing with tantalum oxide with a particle size of 100-300 nm in alkane solvent, drying to obtain nanographene material.