Adsorption of U(VI) by Elodea nuttallii: equilibrium, kinetic and mechanism analysis
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This study had been devoted to investigate the adsorption capacity and adsorption mechanism of Elodea nuttallii. Experimental investigation related to the adsorption behaviors of E. nuttallii toward uranium, regeneration and U(VI) adsorption capacity. The results showed that with the initial U(VI) concentration increased, the maximum adsorption capacity was reached at 3.92 mg/g, regeneration adsorption rate reached 55%, adsorption of U(VI) progress could be described by the Langmuir model and pseudo-second-order kinetics. FT-IR analysis indicated that multiple functional groups involve together in the process of adsorbing U(VI). Therefore, E. nuttallii is a potential absorbent for U(VI) removal from aqueous solution.
KeywordsElodea nuttallii Adsorption Uranium Kinetics
This work was supported by the Country National Defense Fundamental Researh Program (Grant 16ZG6101). The Engineering Research Center of Biomass Materials, Ministry of Education, Southwest University of Science and Technology have offered aid, the authors present our sincere thanks here.
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Conflict of interest
The authors declared that they have no conflict of interest to this work.
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