Adsorption of a Textile Dye on Commercial Activated Carbon: A Simple Experiment To Explore the Role of Surface Chemistry and Ionic Strength

被引：39
|
作者：
Martins, Angela [1 ]
Nunes, Nelson
机构：
[1] Inst Super Engn Lisboa, Area Dept Engn Quim, P-1959007 Lisbon, Portugal
来源：
JOURNAL OF CHEMICAL EDUCATION | 2015年 / 92卷 / 01期
关键词：
Second-Year Undergraduate; Physical Chemistry; Environmental Chemistry; Hands-On Learning/Manipulatives; Surface Science; UV-vis Spectroscopy; Laboratory Instruction; REMOVAL;
D O I：
10.1021/ed500055v
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In this study, an adsorption experiment is proposed using commercial activated carbon as adsorbent and a textile azo dye, Mordant Blue-9, as adsorbate. The surface chemistry of the activated carbon is changed through a simple oxidation treatment and the ionic strength of the dye solution is also modified, simulating distinct conditions of water hardness. The purpose of this experimental work, directed to undergraduate (second-year) students is to allow them to understand the influence of surface chemistry and ionic strength on the interaction between the carbon surface and the dye molecule.
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页码：143 / 147
页数：5
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