Preparation of magnetic CoFe2O4-functionalized graphene sheets via a facile hydrothermal method and their adsorption properties

The role of nanomaterials as effective adsorbents and their applications in wastewater treatment

“…More importantly, rGONSs are much cheaper than SWCNTs [103]. rGONSs have already been used as adsorbents for the removal of cationic red X-GRL [104], MB [66,105], methyl orange (MO) [106], CR [107] and other organic materials from aqueous solutions. The maximum adsorption capacities of p-toluenesulfonic acid (p-TA), 1-naphthalenesulfonic acid (1-NA) and MB on GNS reach up to 1430, 1460 and 1520 mg g -1 at 303 K, respectively, which are the highest among all nanomaterials studied in this field to date [108].…”

Greener synthesis of dimethyl carbonate using a novel ceria–zirconia oxide/graphene nanocomposite catalyst

“…In the synthesis of metal oxides (homo, hetero or doped), hydrothermal syntheses in superheated or supercritical water can offer many advantages over conventional preparative methods including fewer synthetic steps and significantly faster reaction times [46][47][48][49][50][51].There are currently very few scientific reports utilizing hydrothermal routes for decorating graphene with nanoparticles [52][53][54][55].However, the current hydrothermal syntheses are conducted in batch reactors, which are time consuming and give little control over product properties such as crystallinity, size, etc.…”

Graphene Oxide/Co3O4 Nanocomposite: Synthesis, Characterization, and Its Adsorption Capacity for the Removal of Organic Dye Pollutants from Water

“…9 This problem can be solved via chemical modification of graphene by the process of attaching organic groups or inorganic particles onto graphite oxide (GO) surfaces which can result not only in physical separation of the resultant functionalized graphene sheets but also in the possible formation of a stable dispersed phase of graphene in the synthesis process [10][11][12] and keep the surface area and pore volume at high levels which is required for applications such as adsorption processes and photocatalysis. 13 In recent years, various transition metal oxides nanoparticles such as Fe 2 16 The observed maximum adsorption capacity at 10 mg L -1 initial concentration was 71.54 mg g -1 . In another study, Fan et al prepared a magnetic chitosan-GO (MCFO) nanocomposite through covalent bonding of chitosan to the surface of Fe 3 O 4 nanoparticles followed by covalent functionalization of GO with magnetic chitosan which acted as a good adsorbent to adsorb MB from aqueous solutions.…”