Grass waste: A novel sorbent for the removal of basic dye from aqueous solution

被引：123

作者：

Hameed, B. H. ^{[1
]}

机构：

[1] Univ Sci Malaysia, Sch Chem Engn, Nibong Tebal 14300, Penang, Malaysia

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2009年 / 166卷 / 01期

关键词：

Grass waste; Adsorption; Isotherm; Methylene blue; Kinetics; METHYLENE-BLUE ADSORPTION; MALACHITE GREEN; AGRICULTURAL WASTE; ACTIVATED CARBONS; REACTIVE DYE; FLY-ASH; EQUILIBRIUM; KINETICS; SORPTION; ADSORBENT;

D O I：

10.1016/j.jhazmat.2008.11.019

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The aim of the present work was to investigate the feasibility of grass waste (GW) for methylene blue (MB) adsorption. The adsorption of MB on GW material was studied as a function of GW dose (0.05-1.20 g), solution pH 3-10, contact time and initial concentration (70-380 mg/L). The influence of these parameters on the adsorption capacity was studied using the batch process. The experimental data were analyzed by the Langmuir and Freundlich isotherms. The adsorption isotherm was found to follow the Langmuir model. The monolayer adsorption capacity was found to be 457.640 mg/g. The kinetic data were fitted to the pseudo-first-order and pseudo-second-order models, and were found to follow closely the pseudo-second-order kinetic model. The results revealed that GW adsorbent is potentially low-cost adsorbent for adsorption of MB. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：233 / 238

页数：6

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