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应用水滑石实时合成分离模拟核素钕

陆菲菲 于少明 邱勇 查才存 程磊磊 王祥科

陆菲菲, 于少明, 邱勇, 查才存, 程磊磊, 王祥科. 应用水滑石实时合成分离模拟核素钕[J]. 环境科学研究, 2012, 25(9): 1035-1040.
引用本文: 陆菲菲, 于少明, 邱勇, 查才存, 程磊磊, 王祥科. 应用水滑石实时合成分离模拟核素钕[J]. 环境科学研究, 2012, 25(9): 1035-1040.
LU Fei-fei, YU Shao-ming, QIU Yong, ZHA Cai-cun, CHENG Lei-lei, WANG Xiang-ke. Separation of Simulated Nuclide Neodymium Using In-Situ Hydrotalcite Synthesis[J]. Research of Environmental Sciences, 2012, 25(9): 1035-1040.
Citation: LU Fei-fei, YU Shao-ming, QIU Yong, ZHA Cai-cun, CHENG Lei-lei, WANG Xiang-ke. Separation of Simulated Nuclide Neodymium Using In-Situ Hydrotalcite Synthesis[J]. Research of Environmental Sciences, 2012, 25(9): 1035-1040.

应用水滑石实时合成分离模拟核素钕

基金项目: 国家自然科学基金项目(20971033)

Separation of Simulated Nuclide Neodymium Using In-Situ Hydrotalcite Synthesis

  • 摘要: 应用水滑石实时合成的方法从高放废液中分离模拟放射性核素钕,通过酸碱滴定、单因素试验及X-射线衍射(XRD)研究确定了最佳分离条件,用红外光谱(FT-IR)、扫描电镜(SEM)、透射电镜(TEM)等对合成的含钕水滑石的结构、形貌进行了分析. 结果表明:模拟放射性核素钕的最佳分离条件,初始ρ(Nd3+)为150 mg/L,pH为10,n(Mg)/[n(Al)+n(Nd)]为3,在该条件下5次平行试验钕的去除率平均值为96.40%,并且钕嵌入到了水滑石的晶格中,合成的含钕水滑石形貌大多为层状六边形;含钕水滑石煅烧产物主要为尖晶石,煅烧产物中未见氧化钕相,表明嵌入到水滑石晶格中的钕在煅烧后仍存在于尖晶石的晶体结构中.

     

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出版历程
  • 收稿日期:  2012-02-07
  • 修回日期:  2012-06-11
  • 刊出日期:  2012-09-25

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