Adsorption of methylene blue from aqueous solution onto NaOH-modified rejected tea

被引：161
|
作者：
Nasuha, N. [1 ]
Hameed, B. H. [1 ]
机构：
[1] Univ Sains Malaysia, Sch Chem Engn, Nibong Tebal 14300, Penang, Malaysia
来源：
CHEMICAL ENGINEERING JOURNAL | 2011年 / 166卷 / 02期
关键词：
Modified rejected tea; Methylene blue; Adsorption; Isotherm; Kinetics; BASIC DYE; WHEAT-STRAW; REMOVAL; EQUILIBRIUM; BATCH; SORPTION; WASTE; BIOSORBENT; COPPER; SHELL;
D O I：
10.1016/j.cej.2010.11.012
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
In this work, the removal of a basic dye, methylene blue (MB) from aqueous solution using NaOH-modified rejected tea (N-RT) was investigated. Equilibrium adsorption and kinetics were studied. The results confirmed that the adsorption isotherm data fitted well to Langmuir isotherm with monolayer adsorption capacity of 242.11 mg/g. The kinetics of MB adsorption process was found to follow pseudo-second-order rate expression. The results suggested that the N-RT would be an excellent alternative for the removal of MB by adsorption process. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：783 / 786
页数：4
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