Equilibrium studies of the adsorption of aromatic disulfonates by Mg-Al oxide

被引：3
|
作者：
Kameda, Tomohito [1 ]
Umetsu, Mami [1 ]
Kumagai, Shogo [1 ]
Yoshioka, Toshiaki [1 ]
机构：
[1] Tohoku Univ, Grad Sch Environm Studies, Aoba Ku, 6-6-07 Aoba, Sendai, Miyagi 9808579, Japan
来源：
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2018年 / 114卷
关键词：
Inorganic compounds; Chemical synthesis; AQUEOUS-SOLUTION; KINETICS; REMOVAL; COMPOUND;
D O I：
10.1016/j.jpcs.2017.11.024
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The removal of m-benzenedisulfonate (BDS2-) and 2,6-naphthalenedisulfonate (NDS2-) anions by Mg-Pd oxide was investigated. Langmuir model best describes the adsorption of both aromatic disulfonate anions, with the maximum amount of uptake higher for BDS2-. Mg-Al oxide reacts easier with the aromatic disulfonate anion with higher charge density, a trend that is the opposite of that observed in aromatic sulfonate anions. After increasing the charge from -1 to -2, the removal of aromatic disulfonates by Mg-Al oxide is controlled by electrostatic interactions, instead of hydrophobic interactions that are dominant for aromatic sulfonate anions.
引用
收藏
页码：129 / 132
页数：4
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