▎ 摘　　要

NOVELTY - Hydrogel composition based on a three dimensional network porous hydrogel structure with two dimensional sheets of graphene oxide, comprises two dimensional sheets of 0.7-1.7 mg ml-1 graphene oxide, with the dispersion of 70-170 ml aluminum oxide nanoparticles, 70-170 ml silver oxide nanoparticles and 40-85 mu l carbon quantum dots onto the gel. USE - The composition is useful for fluoride removal from sample (claimed). ADVANTAGE - The composition: provides efficient and cost-effective technical solution for removing/treating the sample to remove fluoride from sample; and provides efficient composition which exhibits 3 dimensional network porous structure based on 2 dimensional sheets of graphene oxide, with the uniform dispersion of aluminum oxide/silver oxide/carbon quantum dots onto the gels.