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投稿时间:2021-06-01 修订日期:2021-06-02 录用日期:2021-06-09 网络发布日期:2021-07-29
投稿时间:2021-06-01 修订日期:2021-06-02 录用日期:2021-06-09 网络发布日期:2021-07-29
中文摘要: 以水热合成法制备CoFe2O4材料,考察溶液pH、固液比、时间、温度、初始U(Ⅵ)浓度等对CoFe2O4吸附溶液中U(Ⅵ)的影响。用扫描电镜(SEM)对材料进行表征,分析其去除U(Ⅵ)的机理。结果表明,CoFe2O4对U(Ⅵ)有很好的去除效果,在pH为5.5、固液比0.3 g/L、反应时间120 min、U(Ⅵ)溶液浓度30 mg/L条件下,U(Ⅵ)最大吸附容量为73.9 mg/g。
Abstract:CoFe2O4 material was prepared by hydrothermal synthesis method, and influences of pH value, ratio of solid to liquid, time, temperature, and initial U(Ⅵ) concentration on U(Ⅵ) in CoFe2O4 adsorption solution were investigated. The material was characterized by SEM and mechanism of its removal of U(Ⅵ) was analyzed. The results show that CoFe2O4 has a very good removal effect on U(Ⅵ). The maximum adsorption capacity of U(Ⅵ) is 73.9 mg/g under the conditions including pH value of 5.5, ratio of solid to liquid of 0.3 g/L, reaction time of 120 min, and U(Ⅵ) solution concentration of 30 mg/L.
keywords: cobalt ferrite acrylamide uranium adsorption mechanism
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基金项目:国家自然科学基金资助项目(41761090,11465002,11765002);江西省自然科学基金项目(20171ACB2021)
引用文本:
杜艳军,陈蓉,李小燕,刘义保,乐长高.改性CoFe2O4对溶液中U(Ⅵ)的吸附性能研究[J].有色金属(冶炼部分),2021(8):127-133.
DU Yan-jun,CHEN Rong,LI Xiao-yan,LIU Yi-bao,LE Zhang-gao.Study on Adsorption Performance of Modified CoFe2O4 for U(Ⅵ) in Solution[J].Nonferrous Metals (Extractive Metallurgy),2021(8):127-133.
杜艳军,陈蓉,李小燕,刘义保,乐长高.改性CoFe2O4对溶液中U(Ⅵ)的吸附性能研究[J].有色金属(冶炼部分),2021(8):127-133.
DU Yan-jun,CHEN Rong,LI Xiao-yan,LIU Yi-bao,LE Zhang-gao.Study on Adsorption Performance of Modified CoFe2O4 for U(Ⅵ) in Solution[J].Nonferrous Metals (Extractive Metallurgy),2021(8):127-133.

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