Adsorption of Rhodamine G from Aqueous Solutions onto Particles of Few-Layer Graphene Prepared by Self-Propagating High-Temperature Synthesis
Nikita PodlozhnyukPhysicotechnical InstituteA. A. VoznyakovskiyIoffe Physicotechnical Institute, Russian Academy of SciencesA. P. VoznyakovskiyIoffe Physicotechnical Institute, Russian Academy of SciencesС. В. КидаловIoffe Physicotechnical Institute, Russian Academy of SciencesE. A. BogachevaIoffe Physicotechnical Institute, Russian Academy of Sciences
ABI
Abstract
The ability of few-layer graphene prepared by self-propagating high-temperature synthesis to adsorb Rhodamine G was studied. The dependences of the sorption capacity of few-layer graphene particles on the Rhodamine G concentration in aqueous solution, solution temperature, and adsorption time were determined. The adsorption of Rhodamine G on the surface of few-layer graphene is satisfactorily described by the Langmuir and Freundlich models. The process occurs under mixed diffusion control and can be described by a pseudo-second-order rate equation.
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