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Removal of uranium from aqueous solution by graphene oxide
YU Jing,WANG Jianlong * #
Institute of Nuclear and New Energy Technology, Tsinghau University
*Correspondence author
#Submitted by
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Funding: none
Opened online: 5 May 2017
Accepted by: none
Citation: YU Jing,WANG Jianlong.Removal of uranium from aqueous solution by graphene oxide[OL]. [ 5 May 2017] http://en.paper.edu.cn/en_releasepaper/content/4730928
 
 
In this paper, the adsorption of uranium by graphene oxide was investigated. The effect of pH, contact time, concentration of uranium and temperature on the adsorption capacity of uranium was determined. The graphene oxide (GO) was characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), powder X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and infrared spectra (FTIR). FTIR spectra indicated that carboxyl and alkoxy groups existed on the surface of GO, which involved in uranium adsorption. The adsorption kinetics of U(VI) followed pseudo first-order kinetic model. The adsorption isotherm conformed to Tempkin model. The adsorption process is spontaneous and exothermic.
Keywords:Uranium; grapheme; adsorption; adsorption kinetic
 
 
 

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