A Mini Review: Application Progress of Magnetic Graphene Three-Dimensional Materials for Water Purification

Abstract

Marine oil pollution, colored counterattacks, and heavy metal ions in the water will cause serious environmental problems and threaten human health. The three-dimensional material prepared by graphene, as a new nanomaterial, has a large specific surface area and surface chemical activity. Various impurities in the water can be absorbed, which is very suitable as a water purification material. Depositing Fe3O4 and other magnetic materials on graphene three-dimensional materials can not only increase recyclability but increase hydrophobicity. Therefore, magnetic graphene three-dimensional materials have a high potential for use in water purification. This article reviews the research progress and adsorption mechanism of magnetic graphene materials for water purification. Finally, the future research prospects of magnetic graphene materials have prospected.

Highly Selective Pb(II) Adsorption by DTPA-Functionalized Graphene Oxide/Carboxymethyl Cellulose Aerogel

“…To elucidate, electrostatic interactions occur when positively charged metal ions are attracted to the negatively charged GO surface, enabling effective binding of the metal ions. Second, these groups can remove heavy metals from wastewater by binding to metal ions through chelation. − Therefore, researchers have developed a wide variety of graphene oxide-based adsorbents, such as magnetic graphene oxide nanomaterials, graphene oxide-based membranes, and graphene oxide-based aerogels . Graphene oxide aerogel is considered as an ideal adsorbent because of its lightweight, high porosity, and large specific surface area.…”

Synthesis of magnetic Fe3O4/graphene aerogel for the removal of 2,4-dichlorophenoxyacetic acid herbicide from water

“…, 69–71 or magnetizing the material. 72–74 Magnetic Fe 3 O 4 is combined with the initial materials to create magnetization for the material. Magnetic aerogel composites have a saturation magnetization of 20–100 emu g −1 .…”

“…Scientists have researched ways to change the properties or state of existence of composites derived from graphene aerogel, such as by forming lms, bers, sheets, etc., [69][70][71] or magnetizing the material. [72][73][74] Magnetic Fe 3 O 4 is combined with the initial materials to create magnetization for the material. Magnetic aerogel composites have a saturation magnetization of 20-100 emu g −1 .…”

Carbon Material With Ordered Sub-Nanometer Hole Defects

“…Many methods can be used to increase the dispersion of graphene. The graphite exfoliation ( Yi et al, 2013 ; Bourlinos et al, 2009 ), microwave-assisted synthesis and functional modification methods can increase the dispersibility of graphene in water ( Li et al, 2019 ; Long et al, 2011 ; Zuo et al, 2010 ; Wang et al, 2020 ; Jiang et al, 2019 ). By changing the solvent, graphite oxide can be stably dispersed in organic solvents ( Mu et al, 2021 ), such as N,N-dimethylformamide (DMF) and tetrahydrofuran (THF).…”