Study on adsorption characteristics of uranyl ions from aqueous solutions using zirconium hydroxide

被引：9
作者：
Liu, Hongxue [1 ]
Wang, Rui [1 ]
Jiang, Heng [1 ]
Gong, Hong [1 ]
Wu, Xiaomeng [1 ]
机构：
[1] Liaoning Shihua Univ, Sch Chem & Mat Sci, Fushun 113001, Peoples R China
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2016年 / 308卷 / 01期
关键词：
Zirconium hydroxide; Calcinated product; Uranyl ions; Adsorption; SOLVENT-EXTRACTION; URANIUM IONS; WASTE-WATER; REMOVAL; U(VI); ACID; SORPTION; CARBON; KINETICS; EQUILIBRIUM;
D O I：
10.1007/s10967-015-4315-y
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The removal of uranyl ions from aqueous solutions using Zr(OH)(4)center dot 3.35H(2)O (ZH) as adsorbent was investigated using a batch adsorption technique. The maximum removal rate was found as 451.7 mg UO2 (2+)center dot g(-1) ZH. The adsorption capacity and adsorption rate of the calcinated products gradually decreases with increasing calcination temperature. The hydroxyl groups in the zirconium hydroxide play an important role for the adsorption uranyl ions, which agree well with the thermogravimetric analysis of zirconium hydroxide for completely dehydration at 700 A degrees C. The observed data shows that the adsorption process is dependent on surface complexation mechanism.
引用
收藏
页码：213 / 220
页数：8
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