Development of foamy-like 3-dimensional graphene networks decorated with iron oxide nanoparticles for strontium adsorption

Kasap, Sibel (2021) Development of foamy-like 3-dimensional graphene networks decorated with iron oxide nanoparticles for strontium adsorption. Separation Science and Technology, 56 (7). pp. 1184-1194. ISSN 0149-6395 (Print) 1520-5754 (Online)

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Abstract

Three-dimensional magnetic graphene foam (3D-MGF) was improved for removal of strontium ions. Chemical Vapor Deposition (CVD) method and hydrothermal method were used to obtained 3D-MGFs, respectively. Central Composite Design (CCD) method was conducted to establish the optimum conditions for adsorption of strontium ions on 3D-MGFs. At the optimum conditions, the maximum adsorption capacity was calculated 39.68 mg/g. Freundlich isotherm model showed that a multilayer formation occurred in the 3D-MGF’s surface. Moreover, the adsorption process was endothermic, and recycle experiments showed there was about 25% loss in the adsorption capacity of 3D-MGFs for strontium ions after 5 times reuse.
Item Type: Article
Uncontrolled Keywords: iron oxide nanoparticles; isotherm models; three dimensional graphene foam; Water pollution
Divisions: Sabancı University Nanotechnology Research and Application Center
Depositing User: Sibel Kasap
Date Deposited: 19 Aug 2022 14:59
Last Modified: 19 Aug 2022 14:59
URI: https://research.sabanciuniv.edu/id/eprint/43248

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