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.

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收藏

页码：129 / 132

页数：4

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