ADSORPTION OF REACTIVE BLUE 19 DYE IN AQUEOUS SOLUTION BY RED MUD CHEMICALLY TREATED WITH HYDROGEN PEROXIDE

被引：0

作者：

de Souza, Kelli Cristina ^{[1
]}

Pereira Antunes, Maria Lucia ^{[1
]}

da Conceicao, Fabiano Tomazini ^{[2
]}

机构：

[1] Univ Estadual Paulista, Dept Engn Ambiental, BR-18087180 Sorocaba, SP, Brazil

[2] Univ Estadual Paulista, Inst Geociencias & Ciencias Exatas, BR-13506900 Rio Claro, SP, Brazil

来源：

QUIMICA NOVA | 2013年 / 36卷 / 05期

关键词：

adsorption; reactive dye; red mud; WASTE-WATER; ACTIVATED CARBONS; METHYLENE-BLUE; COLOR REMOVAL; CONGO RED; FLY-ASH; EQUILIBRIUM; ISOTHERM; KINETICS; SORPTION;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Adsorption of Reactive Blue 19 dye onto activated red mud was investigated. Red mud was treated with hydrogen peroxide (LVQ) and heated at both 400 degrees C (LVQ400) and 500 degrees C (LVQ500). These samples were characterized by pH, specific surface area, point of zero charge and mineralogical composition. Adsorption was found to be significantly dependent on solution pH, with acidic conditions proving to be the most favorable. The adsorption followed pseudo-second-order kinetics. The Langmuir isotherm was the most appropriate to describe the phenomenon of dye removal using LVQ, LVQ400 and LVQ500, with maximum adsorption capacity of 384.62, 357.14 and 454.54 mg g(-1,) respectively.

引用

页码：651 / 656

页数：6

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