Study on Adsorption of U(VI) from Aqueous solution by activated MgO

被引：0
|
作者：
Liu, Qingqing [1 ]
Li, Xiaoyan [1 ]
机构：
[1] East China Univ Technol, Environm & Fundamental Sci Radio Geol & Explorat, Nanchang, Jiangxi, Peoples R China
来源：
PROCEEDINGS OF THE 25TH INTERNATIONAL CONFERENCE ON NUCLEAR ENGINEERING, 2017, VOL 7 | 2017年
关键词：
URANIUM VI; REMOVAL; CARBON; OXIDE; IONS; SORPTION;
D O I：
暂无
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
The activated MgO was synthesized by microwave homoprecipitator method and characterized by SEM, EDS and FT-IR methods. It was used to adsorption of U(VI) from aqueous solution with batch system.The paper discussed the effect of pH, temperature, contact time, adsorbent dose and initial U(VI) concentration on the adsorption. The results showed that activated MgO has good adsorption capacity for U(VI), the removal rate and equilibrium adsorption capacity reached 83.5% and 84.04mg.g(-1) at pH 5.0, 15mg dose and 313K,respectively. The adsorption kinetics of U(VI) onto activated MgO were better fitted with pseudo-second-order kinetic.The adsorption isotherm data were fitted well to Freundlich isotherm model.The thermodynamic parameters showed that the adsorption process is endothermic and spontaneous.
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页数：7
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