Investigation of equilibrium, kinetic and thermodynamic of methylene blue adsorption onto dehydrated hazelnut husk carbon

被引：12

作者：

Simsek, Gulsah ^{[1
]}

Imamoglu, Mustafa ^{[1
]}

机构：

[1] Sakarya Univ, Sci & Arts Fac, Dept Chem, TR-54187 Sakarya, Turkey

来源：

DESALINATION AND WATER TREATMENT | 2015年 / 54卷 / 06期

关键词：

Agricultural waste; Isotherm; Kinetic; Activated carbon; Adsorption; Hazelnut husk; SOLID-PHASE EXTRACTION; MODIFIED SILICA-GEL; ACTIVATED CARBON; AQUEOUS-SOLUTION; WASTE-WATER; REMOVAL; DYE; IONS; PRECONCENTRATION; ISOTHERM;

D O I：

10.1080/19443994.2014.892838

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In this study, adsorption of methylene blue (MB) on dehydrated hazelnut husk carbon(DHHC) was tested in batch adsorption system by investigating several factors including pH, contact time, initial concentration, mass dosage and temperature. MB adsorption was found to be favoured at pH values >= 7.0. The increase in temperature yielded an increase in MB adsorption. The MB adsorption was reached to equilibrium in 8 h. The MB equilibrium data agreed well with Langmuir equation with maximum monolayer capacity of 285.7 mg g(-1). MB adsorption kinetics was described well with the pseudo-second-order kinetic model. The thermodynamic investigations showed a spontaneity and endothermicity of MB adsorption onto dehydrated hazelnut husk. Eventually, DHHC could be utilized as an effective and useful adsorbent for the removal of MB from aqueous solutions.

引用

页码：1747 / 1753

页数：7

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