학술논문
Effect of surface modification of carbon felts on capacitive deionization for desalination
이용수 7
- 영문명
- Effect of surface modification of carbon felts on capacitive deionization for desalination
- 발행기관
- 한국탄소학회
- 저자명
- Jong-Ho Lee Hong-Joo Ahn Donghwan Cho Jeong-Il Youn Young-Jig Kim Han-Jun Oh
- 간행물 정보
- 『Carbon Letters』제16권 제2호, 93~100쪽, 전체 8쪽
- 주제분류
- 자연과학 > 자연과학일반
- 파일형태
- 발행일자
- 2015.04.30
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국문 초록
영문 초록
Surface modified carbon felts were utilized as an electrode for the removal of inorganic ions
from seawater. The surfaces of the carbon felts were chemically modified by alkaline and
acidic solutions, respectively. The potassium hydroxide (KOH) modified carbon felt exhibited
high Brunauer-Emmett-Teller (BET) surface areas and large pore volume, and oxygencontaining
functional groups were increased during KOH chemical modification. However,
the BET surface area significantly decreased by nitric acid (HNO3) chemical modification
due to severe chemical dissolution of the pore structure. The capability of electrosorption by
an electrical double-layer and the efficiency of capacitive deionization (CDI) thus showed
the greatest enhancement by chemical KOH modification due to the appropriate increase of
carboxyl and hydroxyl functional groups and the enlargement of the specific surface area.
목차
1. Introduction
2. Experimental
3. Results and Discussio
4. Conclusions
References
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