Effect of surface modification of carbon felts on capacitive deionization for desalination

Jong-Ho Lee (이종호); AHN Hong Joo (안홍주); Donghwan Cho (조동환); Jeong-Il Youn (윤정일); KIM， YOUNGJIG (김영직); Han-Jun Oh (오한준)

Effect of surface modification of carbon felts on capacitive deionization for desalination

Carbon Letters
Abbr : Carbon Lett.
2015, 16(2), pp.93-100
Publisher : Korean Carbon Society
Research Area : Natural Science > Natural Science General > Other Natural Sciences General

Jong-Ho Lee ¹, AHN Hong Joo ², Donghwan Cho ³, Jeong-Il Youn ⁴, KIM， YOUNGJIG ⁴, Han-Jun Oh ¹

¹한서대학교
²한국원자력연구원
³금오공과대학교
⁴성균관대학교

Accredited

ABSTRACT

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.

KEYWORDS

carbon felt, functional group, capacitive deionization, desalination

Citation status

This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2023-01-03)

Total Citation Counts(KCI+WOS) (13) This is the number of times that the duplicate count has been removed by comparing the citation list of WoS and KCI.

Scopus Citation Counts (17) This is the result of checking the information with the same ISSN, publication year, volume, and start page between articles in KCI and the SCOPUS journals. (as of 2024-10-01)

* References for papers published after 2023 are currently being built.

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Carbon Letters 2023 KCI Impact Factor : 1.35 KCI-WoS Impact Factor : 6.04