書誌事項
- タイトル別名
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- Carbonization of Coffee Grounds Surface by Microwave and Adsorption Behavior of Nitrite Nitrogen
- マイクロハ ショウシャ ニ ヨル コーヒーマメカス ヒョウメン ノ タンカ ト アショウサンセイ チッソ ノ キュウチャク キョドウ
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Recently, some harmful compounds and bacteria have been detected from tap water. Particularly, the nitrite nitrogen causes methemoglobinemia and cyanosis for infants. In this study, the surfaces of coffee grounds were carbonized by microwave and carbonaceous materials were produced. The specific surface area of the coffee grounds did not change by carbonization, while the base consumption decreased. Moreover, we estimated the extent of the adsorption of nitrite nitrogen onto the coffee grounds in terms of its removal from tap water. The adsorption mechanism of nitrite nitrogen onto coffee grounds would be monolayer adsorption, because the adsorption isotherms fitted to Freundlich or Langmuir equations. It is suggested that the adsorption of nitrite nitrogen onto coffee grounds is related to the phenolic hydroxyl and carboxyl groups. The coffee grounds thus can be utilized for the removal nitrite nitrogen from tap water.
収録刊行物
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- 表面科学
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表面科学 25 (7), 382-386, 2004
公益社団法人 日本表面科学会
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詳細情報 詳細情報について
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- CRID
- 1390001206457877248
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- NII論文ID
- 10013275178
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- NII書誌ID
- AN00334149
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- COI
- 1:CAS:528:DC%2BD2cXns1Ghu74%3D
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- ISSN
- 18814743
- 03885321
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- NDL書誌ID
- 7028284
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可
