Synthesis of magnetic graphene oxide nanoribbons composite for the removal of Th(IV) from aqueous solutions
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Functionalized magnetic graphene oxide nanoribbons (MGONRs) composite material was synthesized by hydrothermal treatment method using graphene oxide nanoribbons as raw material, which was formed by longitudinal unzipping of multi-walled carbon nanotubes in oxidizing environment. The morphology and structural properties of MGONRs were characterized by SEM, FT-IR, XRD and VSM and thorium adsorption behavior on MGONRs was investigated. The results showed that thorium adsorption on MGONRs was pH-dependent, endothermic and spontaneous. The adsorption process followed pseudo-second order and Freundlich isotherm model with rapid solid–liquid separation. MGONRs could have practical application in separation and recovery of thorium from aqueous solutions.
KeywordsGraphene oxide nanoribbons Magnetic composite material Thorium Adsorption
This work was financially supported by the National Natural Science Foundation of China (21601033, 21866006, 11875105, 21661003, 11705027), and Jiangxi Province Key Subjects Academy and Technique Leaders Funding Project (20172BCB22020), Natural Science Funds for Distinguished Young Scholar of Jiangxi Province (20171BCB23067), Open Project Foundation of Nuclear Technology Application Ministry of Education Engineering Research Center (East China University of Technology) (HJSJYB2016-6), Open Project Foundation of Stake key Laboratory of Nuclear Resources and Environment (East China University of Technology) (NRE1509).
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