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U(VI) sorption on illite: effect of pH, ionic strength, humic acid and temperature

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成果类型:
期刊论文
作者:
Gao, Yang;Shao, Zhenyi;Xiao, Zhihai*
通讯作者:
Xiao, Zhihai
作者机构:
[Xiao, Zhihai; Gao, Yang] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.
[Shao, Zhenyi] Chengdu Technol Univ, Dept Mech Engn, Chengdu 611730, Peoples R China.
通讯机构:
[Xiao, Zhihai] U
Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.
语种:
英文
关键词:
Desorption;Humic acid;Illite;Sorption;U(VI)
期刊:
Journal of Radioanalytical and Nuclear Chemistry
ISSN:
0236-5731
年:
2015
卷:
303
期:
1
页码:
867-876
基金类别:
National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41273134]
机构署名:
本校为第一且通讯机构
院系归属:
核科学技术学院
摘要:
In this work, the effect of various environmental factors on U(VI) sorption to illite was investigated,such as pH, ionic strength, humic acid (HA) and temperature. U(VI) sorption to illite strongly depended on pH values, ionic strength and temperature. At pH < 6.0, the presence of HA obviously improved U(VI) sorption on illite, because of the strong complexation between HA and U(VI) on illite surface. However, a slight inhibiting effect appeared at pH > 6.0. The thermodynamic parameters (Delta HA degrees, Delta SA degrees and Delta GA degrees) calculated from the temperature dependent sorption...

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