Blend of polyvinylpyrrolidone/thermally reduced graphene for adsorption of heavy metal ions in water
Diep Ngoc Le,
Linh Duy Nguyen,
Dong Duy Tran
et al.
Abstract:This paper presents the preparation of a modified polyvinylpyrrolidone (PVP)/graphene mixture and evaluates its adsorption capacity for heavy metal ions in water. Graphene with a high specific surface area of about 362 m2 g−1 was obtained through the thermal separation of graphite oxide (GO), which had been synthesised from graphite by the Hummer method. The graphene-PVP blend was prepared by dispersing the graphene into a PVP solution and then crosslinking it to prevent washout by water. This crosslinking ens… Show more
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