MISC

2009年

活性炭表面で起こる水溶液中での4-クロロフェノールの脱塩素反応

表面科学
  • 森山功之
  • ,
  • 町田基
  • ,
  • 立本英機

30
2
開始ページ
111-116 (J-STAGE)
終了ページ
116
記述言語
日本語
掲載種別
DOI
10.1380/jsssj.30.111
出版者・発行元
The Surface Science Society of Japan

Activated carbons (ACs) oxidized and out-gassed were prepared by introducing acidic functional groups in the warming nitric acid and eliminating them in He flow at 1000oC, respectively. Adsorption time course of 4-chlorophenol (4CP) on the carbons was examined in aqueous solutions. Though any significant pH variation could not be observed for the oxidized AC, the pH for the out-gassed AC obviously decreased as a result of concurrently releasing chloride ions from the carbon surface into the aqueous solution. Measuring surface functional groups on the 4CP adsorbed carbon rinsed with methanol to thoroughly remove physically adsorbed 4CP indicated that the hydroxyl groups increased by 2.5 times as many as the released chloride ions, and the basic sites decreased in contrast. 4CP is estimated to degrade on the out-gassed carbon, releasing chloride ions in the aqueous solution and forming chemical bonding between decomposed phenolic compound and some basic sites on the surface.

リンク情報
DOI
https://doi.org/10.1380/jsssj.30.111
J-GLOBAL
https://jglobal.jst.go.jp/detail?JGLOBAL_ID=200902250017136478
CiNii Articles
http://ci.nii.ac.jp/naid/10024945278
CiNii Books
http://ci.nii.ac.jp/ncid/AN00334149
ID情報
  • DOI : 10.1380/jsssj.30.111
  • ISSN : 0388-5321
  • J-Global ID : 200902250017136478
  • CiNii Articles ID : 10024945278
  • CiNii Books ID : AN00334149

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