N2 plasma treatment on activated carbon fibers for toxic gas removal: Mechanism study by electrochemical investigation
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- 作者：Byong Chol Baia ; b ; Hyun-Uk Leec ; Chul Wee Leea ; d ; Young-Seak Leeb ; Ji Sun Ima ; d ; jsim@krict.re.kr" class="auth_mail" title="E-mail the corresponding author
- 关键词：Activated carbon fibers (ACFs) ; N2 plasma ; Quaternary nitrogen ; SO2 adsorption ; Gas sensor
- 刊名：Chemical Engineering Journal
- 出版年：2016
- 出版时间：15 December 2016
- 年：2016
- 卷：306
- 期：Complete
- 页码：260-268
- 全文大小：1232 K
文摘
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SO2 adsorption properties of activated carbon fibers (ACFs) were studied based on N2 plasma treatment.
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The nitrogen functional groups, especially quaternary nitrogen groups were successfully introduced on the ACFs surface.
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Quaternary nitrogen groups were employing a semi-ionic introduction with SO2 molecules.
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Pyridine N-oxide (N-X) functional group exhibited acidic properties and had a neutralizing effect on the ACFs’ surface.