期刊
RSC ADVANCES
卷 5, 期 30, 页码 23144-23151出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ra16446f
关键词
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资金
- Heilongjiang Province Natural Science Funds for Distinguished Young Scholar [JC201404]
- Special Innovation Talents of Harbin Science and Technology for Distinguished Young Scholar [2014RFYXJ005]
- Fundamental Research Funds of the Central University (HEUCFZ)
- Natural Science Foundation of Heilongjiang Province [B201316, E201329]
- Program of International S&T Cooperation special project [2015DFR50050]
- Special Innovation Talents of Harbin Science and Technology [2014RFQXJ087]
- fund for Transformation of Scientific and Technological Achievements of Harbin [2013DB4BG011]
- Innovation Talents of Harbin Science and Technology [2014RFQXJ035]
The magnesium carbonate basic coating on the cotton cloth (Mg2CO3(OH)(2)/CC) was prepared by a facile and cost-effective method for uranium(VI) adsorption. The process of the obtained material for uranium(VI) adsorption from an aqueous solution was fully researched. The results reveal that the maximum adsorption capacity of the Mg2CO3(OH)(2)/CC toward uranium is 370 mg g(-1), providing a strong efficiency for the removal of uranium from aqueous solution. The experimental data were analyzed using adsorption kinetic models. The adsorption kinetics of uranium onto Mg2CO3(OH)(2)/CC obey the pseudo-second-order model, indicating that the determining step might be chemical adsorption. The calculated thermodynamic parameters, such as Delta H degrees, Delta S degrees and Delta G degrees, show that the adsorption process is spontaneous and endothermic. Furthermore, the as-prepared material can be easily separated from the aqueous solution after adsorption. Such excellent performance may promote this promising and effective adsorbent for practical uranium(VI) adsorption.
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