활성탄 입자 크기가 카페인 흡착에 미치는 영향
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김태양 | - |
dc.contributor.author | 도시현 | - |
dc.contributor.author | 홍성호 | - |
dc.date.available | 2018-05-09T07:55:11Z | - |
dc.date.created | 2018-04-17 | - |
dc.date.issued | 2015-06 | - |
dc.identifier.issn | 1225-7672 | - |
dc.identifier.uri | http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/9054 | - |
dc.description.abstract | The effect of activated carbon particle diameter (i.e. US sieve No. 8×10 (dp ≈ 2.19 mm), 18×20 (dp ≈ 0.92 mm), 50×60 (dp ≈ 0.27 mm) and 170×200 (dp ≈ 0.081 mm)) on caffeine adsorption is investigated. BET surface area was increased with decreasing particle diameter (dp), and caffeine adsorption rates increased with decreasing dp. Moreover, pseudo-second order model is predicted the experimental data more accurately than pseudo-first order model, and the fastest rate constant (k2) was 1.7 g mg-1 min-1 when dp was 0.081 mm. Surface diffusion coefficient (Ds) was decreased with decreasing dp based on the minimum sum of square error (SSE). Practically, certain ranges of Ds are acceptable with high reliability (R2) and it is determined that the effect of dp on Ds is unclear. The effect of pH on caffeine adsorption indicated the dependency of m/L ratio (mass liquid ratio) and pHPZC. The pHPZC (i.e. 7.9 ± 0.2) was not affected by dp. The higher caffeine adsorption at pH 4 and pH 7 than at pH 10 is due to pHPZC, not pka of caffeine. | - |
dc.language | 한국어 | - |
dc.language.iso | ko | - |
dc.publisher | 대한상하수도학회 | - |
dc.relation.isPartOf | 상하수도학회지 | - |
dc.subject | 카페인 | - |
dc.subject | 활성탄 | - |
dc.subject | 흡착 | - |
dc.subject | 유사 2차 반응 | - |
dc.subject | 표면 확산 계수(Ds) | - |
dc.subject | caffeine | - |
dc.subject | activated carbon | - |
dc.subject | adsorption | - |
dc.subject | pseudo-second-order reaction | - |
dc.subject | surface diffusion coefficient(Ds) | - |
dc.title | 활성탄 입자 크기가 카페인 흡착에 미치는 영향 | - |
dc.title.alternative | Effects of Activated Carbon Particle Sizes on Caffeine Adsorptions | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | 상하수도학회지, v.29, no.3, pp.407 - 414 | - |
dc.identifier.kciid | ART001998663 | - |
dc.description.journalClass | 2 | - |
dc.citation.endPage | 414 | - |
dc.citation.number | 3 | - |
dc.citation.startPage | 407 | - |
dc.citation.title | 상하수도학회지 | - |
dc.citation.volume | 29 | - |
dc.contributor.affiliatedAuthor | 홍성호 | - |
dc.identifier.url | https://www.kci.go.kr/kciportal/ci/sereArticleSearch/ciSereArtiView.kci?sereArticleSearchBean.artiId=ART001998663 | - |
dc.description.isOpenAccess | N | - |
dc.subject.keywordAuthor | 카페인 | - |
dc.subject.keywordAuthor | 활성탄 | - |
dc.subject.keywordAuthor | 흡착 | - |
dc.subject.keywordAuthor | 유사 2차 반응 | - |
dc.subject.keywordAuthor | 표면 확산 계수(Ds) | - |
dc.subject.keywordAuthor | caffeine | - |
dc.subject.keywordAuthor | activated carbon | - |
dc.subject.keywordAuthor | adsorption | - |
dc.subject.keywordAuthor | pseudo-second-order reaction | - |
dc.subject.keywordAuthor | surface diffusion coefficient(Ds) | - |
dc.description.journalRegisteredClass | kci | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
Soongsil University Library 369 Sangdo-Ro, Dongjak-Gu, Seoul, Korea (06978)02-820-0733
COPYRIGHT ⓒ SOONGSIL UNIVERSITY, ALL RIGHTS RESERVED.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.