Facile fabrication of 3D graphene hydrogel (rGH) for enhanced removal of heavy metal Cr (VI)

North China University of Science and Technology, College of Metallurgy and Energy, Hebei Provincial High-Quality Steel Continuous Casting Engineering Technology Research Center, Tangshan Hebei 063210; Y. Li; X. Y. Zhao; Tangshan Open University ,Tangshan Hebei 063210; X. C. Guo; North China University of Science and Technology，Yisheng College，Tangshan Hebei 063210; J. Wang; North China University of Science and Technology，Yisheng College，Tangshan Hebei 063210; W. Chen; North China University of Science and Technology, College of Metallurgy and Energy, Hebei Provincial High-Quality Steel Continuous Casting Engineering Technology Research Center, Tangshan Hebei 063210

doi:10.15251/djnb.2023.182.463

journal article·2023-04Open access

Facile fabrication of 3D graphene hydrogel (rGH) for enhanced removal of heavy metal Cr (VI)

North China University of Science and Technology, College of Metallurgy and Energy, Hebei Provincial High-Quality Steel Continuous Casting Engineering Technology Research Center, Tangshan Hebei 063210, Y. Li, X. Y. Zhao, Tangshan Open University ,Tangshan Hebei 063210, X. C. Guo, North China University of Science and Technology，Yisheng College，Tangshan Hebei 063210, J. Wang, North China University of Science and Technology，Yisheng College，Tangshan Hebei 063210, W. Chen, North China University of Science and Technology, College of Metallurgy and Energy, Hebei Provincial High-Quality Steel Continuous Casting Engineering Technology Research Center, Tangshan Hebei 063210

Digest Journal of Nanomaterials and Biostructures· Volume 18· Issue 2

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Source abstract

Abstract

The reduced graphene hydrogel (rGH) was prepared by chemical reduction method, and removal performance of heavy metal Cr (VI) in static water was studied. The rGH has a three-dimensional structure and narrow pore size distribution, that the adsorption process of Cr (VI) by rGH is in accordance with Langmuir isotherm model, and the maximum adsorption capacity is 139.6 mg·g-1 .The significant adsorption capacity is mainly attributed to the fact that rGH has nano-sheet structure, and maintains the surface adsorption characteristics of graphene with rapid adsorption. The π-π action will reduce the competitive adsorption of water and increase the adsorption capacity.

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Research context

Polymers Nanomaterials

OpenAlex topics: Graphene and Nanomaterials Applications · Nanomaterials for catalytic reactions · Adsorption and biosorption for pollutant removal

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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