Wheat bran modified with citric acid and its application in the adsorption of methylene blue from aqueous solution

被引：0

作者：

Shi Zhongliang ^{[1
]}

Wang Xingxing ^{[1
]}

Yang Yihong ^{[1
]}

Yao Shuhua ^{[1
]}

机构：

[1] Shenyang Univ Chem Technol, Sch Appl Chem, Shenyang 110142, Peoples R China

来源：

JOURNAL OF THE INDIAN CHEMICAL SOCIETY | 2014年 / 91卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Wheat bran; modification; citric acid; methylene blue; adsorption; WASTE-WATER; ACTIVATED CARBON; REACTIVE DYES; COIR PITH; FLY-ASH; REMOVAL; KINETICS; BIOSORPTION; SORPTION; EQUILIBRIUM;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Wheat bran was modified with citric acid and utilized as a low cost adsorbent to remove methylene blue, a cationic dye from aqueous solutions. Batch experiments were carried out to study the effect of various experimental parameters such as initial solution pH, contact time, initial dye concentration and adsorbent dosage on methylene blue adsorption, and the optimal condition was selected. Kinetics studies showed that methylene blue adsorption process obeyed pseudo-second order rate equation. The applicability of the Langmuir and Freundlich models for the data was tested. Both the models adequately describe the experimental data of the adsorption of methylene blue. The maximum adsorption capacity calculated from the Langmuir model is 25.6 mg/g for methylene blue. The study has shown the effectiveness of modified wheat bran in the removal of methylene blue from aqueous solutions.

引用

页码：705 / 712

页数：8

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