METHYLENE BLUE ADSORPTION USING CHABAZITE: KINETICS AND EQUILIBRIUM MODELLING

被引：13

作者：

Solisio, Carlo ^{[1
]}

Aliakbarian, Bahar ^{[1
]}

机构：

[1] Univ Genoa, Dept Civil Chem & Environm Engn DICCA, Via Opera Pia 15, I-16145 Genoa, Italy

来源：

CANADIAN JOURNAL OF CHEMICAL ENGINEERING | 2017年 / 95卷 / 09期

关键词：

natural zeolite; dye adsorption; kinetics; isotherm; modelling; AQUEOUS-SOLUTION; UNBURNED CARBON; ZEOLITIC TUFF; WASTE-WATER; REMOVAL; DYE; MECHANISM; SORPTION; CD(II); PHASE;

D O I：

10.1002/cjce.22838

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The adsorption of methylene blue from aqueous solution by a natural zeolite (chabazite) was studied. The effect of adsorbate concentration and pH were evaluated using raw and acid-treated chabazite. Fourier transform infrared spectroscopy analysis revealed surface modification of acid-treated chabazite, thus resulting in a decrease in adsorption capacity. The sorption kinetics and the equilibrium isotherms were evaluated. The pseudo-second-order model was found to be the most suited for kinetic results, and the Langmuir isotherm was chosen to better describe the sorption system. The results confirmed the efficacy of raw chabazite in removing almost all methylene blue fraction from the solution. The use of such a material, at low cost and easily available, can therefore represent a possible efficient way to remove dyes from effluent of many industries.

引用

页码：1760 / 1767

页数：8

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