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题名:
Sorption and desorption properties of Eu(III) on attapulgite 
作者:
Chen, Zhongshan,He, Jietao,Chen, Lei,Lu, Songsheng, 
作者单位: North China Elect Power Univ, Sch Environm & Chem Engn, Beijing 102206, Peoples R China 
发表形式: 期刊 
发表载体: Journal of Radioanalytical and Nuclear Chemistry: An International Journal Dealing with All Aspects and Applications of Nuclear Chemistry 
年卷期:  
发表时间: 2016 
总页数: 12 
分类号:  
关键词: Eu152+154(III),Attapulgite,Sorption-desorption,Interaction mechanism, 
正文语种: eng 

文摘:

  The sorption-desorption of Eu(III) on attapulgite was studied using batch technique. The sorption of Eu(III) on attapulgite was strongly dependent on pH and ionic strength at low pH, and independent of ionic strength at high pH. The interaction was dominated by outer-sphere surface complexation/ion exchange at low pH, and by inner-sphere surface complexation at high pH. The irreversible sorption-desorption curves also suggested the formation of strong surface complexes. The high sorption capacity of attapulgite suggested that the attapulgite is a suitable material for the efficient elimination of Eu(III) from aqueous solutions in nuclear wastewater management. 

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