Adsorption of sulfate from natural water on calcined Mg-Fe layered double hydroxides

被引：13
|
作者：
Liu, Jiming [1 ]
Yue, Xiuping [1 ]
Yu, Yang [1 ]
Guo, Yu [1 ]
机构：
[1] Taiyuan Univ Technol, Coll Enviromental Sci & Technol, Shanxi, Peoples R China
来源：
DESALINATION AND WATER TREATMENT | 2015年 / 56卷 / 01期
关键词：
Layered double hydroxides; Calcined; Sulfate removal; Adsorption; Natural water; Equilibrium; Kinetic; AQUEOUS-SOLUTION; REMOVAL; HYDROTALCITE; PERFORMANCE; ARSENATE; CHLORIDE; SORPTION; MODELS; COPPER; IONS;
D O I：
10.1080/19443994.2014.934726
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The calcined Mg-Fe layered double hydroxides (Mg-Fe-CLDHs) with the Mg-Fe molar ratio of 3 were used as adsorbents to remove sulfate in natural water. The Mg-Fe-CLDHs were synthesized by the co-precipitation method. The influences of initial adsorbent concentration, temperature, and pH on the adsorption of sulfate on Mg-Fe-CLDHs were evaluated. Three kinetic models and two isotherms were used to fit the experimental data, and it was found that the pseudo-second order kinetics model and Langmuir isotherm model could be used to describe the uptake process appropriately. Characteristics of the adsorbents and adsorption mechanism were analyzed by XRD, FT-IR, BET, TG-DSC, and SEM.
引用
收藏
页码：274 / 283
页数：10
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