Removal of uranium(VI) from aqueous solutions by surface modified magnetic Fe3O4 particles

被引：36
|
作者：
Zhang, Xiaofei [1 ,2 ]
Wang, Jun [1 ,2 ]
Li, Rumin [1 ,2 ]
Dai, Qihui [1 ,2 ]
Liu, Lianhe [3 ]
机构：
[1] Harbin Engn Univ, Minist Educ, Key Lab Superlight Mat & Surface Technol, Harbin 150001, Peoples R China
[2] Harbin Engn Univ, Coll Mat Sci & Chem Engn, Harbin 150001, Peoples R China
[3] Harbin Engn Univ, Inst Adv Marine Mat, Harbin 150001, Peoples R China
来源：
NEW JOURNAL OF CHEMISTRY | 2013年 / 37卷 / 12期
关键词：
HEAVY-METALS; ADSORPTION; NANOPARTICLES; KINETICS; SORPTION; ISOTHERMS; POLYMER; URANYL; IONS;
D O I：
10.1039/c3nj00572k
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We prepared surface modified magnetic Fe3O4 particles (Fe3O4@APTMS) which could efficiently remove uranium(VI) ions from aqueous solutions. Batch experiments have been conducted to study the effects of initial pH, adsorbent dosage, shaking time and temperature on uranium sorption efficiency. It is found that the maximum adsorption capacity of Fe3O4@APTMS toward uranium(VI) is 151.80 mg g(-1), displaying a high efficiency for the removal of uranium(VI) ions. The metal-loaded Fe3O4@APTMS particles could be recovered readily from aqueous solution by magnetic separation and regenerated easily by alkali treatment. The present study suggests that magnetic Fe3O4@APTMS composite particles can be used as an effective and recyclable adsorbent for the removal of uranium(VI) from aqueous solutions.
引用
收藏
页码：3914 / 3919
页数：6
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