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

Tomohito Kameda; Mami Umetsu; Shogo Kumagai; Toshiaki Yoshioka

doi:10.1016/j.jpcs.2017.11.024

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

Tomohito Kameda, Mami Umetsu, Shogo Kumagai, Toshiaki Yoshioka

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

The removal of m-benzenedisulfonate (BDS²⁻) and 2,6-naphthalenedisulfonate (NDS²⁻) anions by Mg–Al 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.

Original language	English
Pages (from-to)	129-132
Number of pages	4
Journal	Journal of Physics and Chemistry of Solids
Volume	114
DOIs	https://doi.org/10.1016/j.jpcs.2017.11.024
Publication status	Published - 2018 Mar

Keywords

A: Inorganic compounds
B: Chemical synthesis

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

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title = "Equilibrium studies of the adsorption of aromatic disulfonates by Mg–Al oxide",

abstract = "The removal of m-benzenedisulfonate (BDS2−) and 2,6-naphthalenedisulfonate (NDS2−) anions by Mg–Al 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.",

keywords = "A: Inorganic compounds, B: Chemical synthesis",

author = "Tomohito Kameda and Mami Umetsu and Shogo Kumagai and Toshiaki Yoshioka",

year = "2018",

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doi = "10.1016/j.jpcs.2017.11.024",

language = "English",

volume = "114",

pages = "129--132",

journal = "Journal of Physics and Chemistry of Solids",

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T1 - Equilibrium studies of the adsorption of aromatic disulfonates by Mg–Al oxide

AU - Kameda, Tomohito

AU - Umetsu, Mami

AU - Kumagai, Shogo

AU - Yoshioka, Toshiaki

PY - 2018/3

Y1 - 2018/3

N2 - The removal of m-benzenedisulfonate (BDS2−) and 2,6-naphthalenedisulfonate (NDS2−) anions by Mg–Al 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.

AB - The removal of m-benzenedisulfonate (BDS2−) and 2,6-naphthalenedisulfonate (NDS2−) anions by Mg–Al 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.

KW - A: Inorganic compounds

KW - B: Chemical synthesis

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U2 - 10.1016/j.jpcs.2017.11.024

DO - 10.1016/j.jpcs.2017.11.024

M3 - Article

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VL - 114

SP - 129

EP - 132

JO - Journal of Physics and Chemistry of Solids

JF - Journal of Physics and Chemistry of Solids

SN - 0022-3697

ER -

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

Abstract

Keywords

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