Surface modification of adsorbents by dielectric barrier discharge

被引：56
|
作者：
Kodama, S [1 ]
Habaki, H [1 ]
Sekiguchi, H [1 ]
Kawasaki, J [1 ]
机构：
[1] Tokyo Inst Technol, Dept Chem Engn, Meguro Ku, Tokyo 1528552, Japan
来源：
THIN SOLID FILMS | 2002年 / 407卷 / 1-2期
关键词：
activated carbon; dielectric barrier discharge; copper; zinc; adsorption;
D O I：
10.1016/S0040-6090(02)00030-5
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Granular activated carbon was treated by oxygen non-thermal plasma to improve its adsorbability for metal ions. The plasma was produced by dielectric barrier discharge under atmospheric pressure. The results of characterization of activated carbon showed that its surface area was decreased, and the concentrations of acidic functional groups at the surface were increased by the treatment. Adsorbability was examined changing the initial pH of the solution containing a metal ion. The saturated adsorption amount of Cu and Zn ion was increased considerably by the treatment. The plasma treatment of activated carbon was concluded as an effective method for improvement of adsorbability. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：151 / 155
页数：5
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