Adsorption of U(VI) on montmorillonite pillared with hydroxy-aluminum

作者：Wang, You-qun; Zheng, Zhi-yang; Zhao, Yi-kang; Huang, Jian-hui; Zhang, Zhi-bin^*; Cao, Xiao-hong; Dai, Ying; Hua, Rong; Liu, Yun-hai^*

来源：Journal of Radioanalytical and Nuclear Chemistry, 2018, 317(1): 69-80.

DOI：10.1007/s10967-018-5913-2

• Montmorillonite
• Adsorption
• U(VI)
• Hydroxy-aluminum
• Pillaring

Hydroxy-aluminum pillared Na-montmorillonite(OH-Al-MT) was prepared for studying sorption of U(VI) in the existence of soluble calcium (Ca2+), carbonate ion (CO3 (2-)) and humic acid. Various characterizations confirm that hydroxy-aluminum was successfully pillared into Na-montmorillonite (Na-MT). The effects of pH, concentration of Ca2+ and CO3 (2-) as well as HA on the sorption capacity of Na-MT and OH-Al-MT for U(VI) has been investigated by batch experiments. Additionally, the kinetics, isotherms and thermodynamics of adsorption of U(VI) were discussed in detailed. The study indicates that OH-Al-MT can be a potentially promising low-cost adsorbent for removal of U(VI) in wastewaters.

• 出版日期2018-7