Adsorption of a Textile Dye on Commercial Activated Carbon: A Simple Experiment To Explore the Role of Surface Chemistry and Ionic Strength
Adsorption of a Textile Dye on Commercial Activated Carbon: A Simple Experiment To Explore the Role of Surface Chemistry and Ionic Strength
复制标题
DOI：
10.1021/ed500055v
复制
发表时间：
2015-01-01
影响因子：
3
通讯作者：
Nunes, Nelson
中科院分区：
文献类型：
--
作者：
Martins, Angela;Nunes, Nelson
在这项研究中，提出了一个吸附实验，使用商业活性炭作为吸附剂和纺织品偶氮染料，媒介蓝-9，作为吸附质。通过简单的氧化处理改变活性炭的表面化学性质，并改变染料溶液的离子强度，模拟不同的水硬度条件。这项实验工作的目的，针对本科（二年级）的学生是让他们了解表面化学和离子强度对碳表面和染料分子之间的相互作用的影响。
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.