期刊
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
卷 310, 期 2, 页码 547-557出版社
SPRINGER
DOI: 10.1007/s10967-016-4813-6
关键词
Adsorption; Uranium(VI); Graphene oxide; Sulfonic acid groups
资金
- National Basic Research Program of China [2014CB460604]
- National Natural Science Foundation of China [21301028, 11475044, 41461070, 21561002]
- Program for Changjiang Scholars and Innovative Research Team in University [IRT13054]
- Science and Technology Support Program of Jiangxi Province [20141BBG70001, 20151BBG70010]
- Advanced Science and Technology Innovation Team Program of Jiangxi Province [20142BCB24006]
- Innovation Team Program of Jiangxi Provincial Department of Science and Technology [2014BCB24006]
- Project of East China Institute of Technology Graduate Student Innovation Fund [DHYC2014025, DHYC2015011]
In this article, we report a facile one-pot method to prepare sulfonated graphene oxide (GOS) via vapor-solid transfer reaction of graphene oxide (GO). The synthesized GOS were characterized and investigated as an adsorbent for the adsorption of U(VI) from aqueous solutions. The results indicated that the adsorption of U(VI) was strongly dependent on pH and independent of ionic strength. The adsorption process followed the pseudo-second-order kinetics and the adsorption isotherm agreed well with the Langmuir model, having a maximum adsorption capacity of 309.09 mg g(-1). Thermodynamic parameters indicated that the adsorption reaction was an endothermic and spontaneous process.
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