Adsorption of Methylene Blue from Aqueous Solution by Anionic Surfactant Modified Montmorillonite

被引：16

作者：

Chen, Daimei ^{[1
]}

Chen, Jian ^{[2
]}

Weng, Xuming ^{[2
]}

Luan, Xinlong ^{[2
]}

Ji, Haipeng ^{[2
]}

Xu, Feng ^{[2
]}

机构：

[1] China Univ Geosci, Natl Lab Mineral Mat, Beijing 100083, Peoples R China

[2] China Univ Geosci, Sch Mat Sci & Technol, Beijing 100083, Peoples R China

来源：

ADVANCE IN ECOLOGICAL ENVIRONMENT FUNCTIONAL MATERIALS AND ION INDUSTRY II | 2011年 / 178卷

关键词：

montmorillonite; modification; sodium stearate; adsorption; methylene blue; SORPTION BEHAVIOR; WATER; DECOLORIZATION; DYE;

D O I：

10.4028/www.scientific.net/AMR.178.29

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

Sodium stearate modified montmorillonite(SSTA-MMT) is prepared by using the anion surfactant sodium stearate, and its structure is characterized by X-ray and FI-IR diffraction. The results show that sodium stearate can be intercalated into the interlayers of montmorillonite and the layer spacing is expanded from 12.74 to 48.05 angstrom with the loading concentration of sodium stearate increasing from 5% to 100% CEC of Na-MMT. The adsorption of methylene blue onto SSTA-MMT experiments show that the adsorption kinetic of methylene blue onto SSTA-MMT can be best described by the pseudo-second-order model and that the adsorption isotherm of methylene blue is in good agreement with the Langmuir equation.

引用

页码：29 / +

页数：2

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