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dc.contributor.author박재우-
dc.date.accessioned2018-02-22T08:49:33Z-
dc.date.available2018-02-22T08:49:33Z-
dc.date.issued2012-09-
dc.identifier.citation대한환경공학회지, 2012, 34(9), P.613-622, 10p.en_US
dc.identifier.issn1225-5025-
dc.identifier.urihttp://www.dbpia.co.kr/Journal/ArticleDetail/NODE06752785-
dc.identifier.urihttp://hdl.handle.net/20.500.11754/40060-
dc.description.abstract본 연구에서는 MTMD의 합성을 통해 빠른 자성회수 및 재사용이 용이한 크롬 흡착제를 개발하였다. 합성을 위해 공침법 및 교대성장을 통한 발산법을 사용하였으며, methyl propionate 및 glutaric acid를 통해 덴드리머를 멀티터미널화 하였다. 합성된 시료의 특성분석은 XRD, FT-IR, TEM, EDS, TGA, Zeta potential analyzer를 통해 이루어졌다. MTMD의 자성코어는 마그네타이트 결정구조를 가졌으며, 4세대 덴드리머의 크기는 15 nm에서 20 nm로 확인되었다. TGA 분석결과 1세대 덴드리머의 유기전도성 가지의 비율은 약 7%였으며 1세대 증가시 3%의 중량 감소가 나타났고 멀티터미널화시 덴드리머의 포텐셜은 -25.26mV에서 -6.53 mV까지 변화하였다. MTMD 흡착실험 결과 5분 이내에서 80% 이상의 크롬을 흡착하였으며 6.308 mg/g의 흡착능을 나타냈다. 자성 회수시 COOH D와 비교하여 회수시간이 2배 이상 단축되었으며 30분 이내에 100% 회수가 가능하였다. 크롬을 이용한 재생실험의 경우 4회 흡착에도 동일한 흡착능을 유지하였다.A chrome absorbent that is useful in rapid magnetic recovery and recycling was developed though a synthesis of Multi- Terminalized Magnetic-core Dendrimer (MTMD). Divergence through coprecipitation and rotation growth was used for synthesis. The dendrimer was multi-terminilized through methyl propionate and glutaric acid. The property analysis of the synthesized sample was performed through XRD, FT-IR, TEM, EDS, TGA and zeta potential analyzer. A magnetic-core of MTMD had a magnetite crystal and the size of 4th generation dendrimer was identified to be from 15 nm to 20 nm. Through the analysis of the TGA, the rate of the dendrimer branch for the first generation dendrimer was about 7% and 3% of diminished weight occurred as the generation grows. Also, the potential of the dendrimer when multi-terminalized, had variation from 25.26 mV to -6.53 mV. As a result of MTMD adsorption experiment, it absorbed more than 80% within 5 minutes and indicated absorptivity of 6.308 mg/g. When it was compared with COOH Dendrimer (COOH-D) after magnetic recovery, the recovery time was rapidly reduced by more than half and it could recover 100% within 30 minutes. In case of the regeneration experiment that used chrome, it was identified to maintain the same adsorptivity for four runs.en_US
dc.language.isoko_KRen_US
dc.publisher대한환경공학회 Korean Society Of Environmental Engineersen_US
dc.subject나노en_US
dc.subject멀티터미널en_US
dc.subjectMagneten_US
dc.subjectNanoen_US
dc.subject덴드리머en_US
dc.subject자성en_US
dc.subjectMulti Terminalen_US
dc.subjectRecycleen_US
dc.subjectDendrimeren_US
dc.subject재사용en_US
dc.subject흡착제en_US
dc.subjectAbsorbenten_US
dc.title크롬 흡착 및 자성회수율 향상을 위한 멀티터미널 자성코어 덴드리머의 합성en_US
dc.title.alternativeSynthesis of Multi-Terminalized Magnetic-Cored Dendrimer for Adsorption of Chromium and Enhancement of Magnetic Recoveryen_US
dc.typeArticleen_US
dc.relation.no9-
dc.relation.volume34-
dc.relation.page613-622-
dc.relation.journal대한환경공학회지-
dc.contributor.googleauthor여인환-
dc.contributor.googleauthor장준원-
dc.contributor.googleauthor김령주-
dc.contributor.googleauthor박재우-
dc.contributor.googleauthorYeo, In-Hwan-
dc.contributor.googleauthorJang, Jun-Won-
dc.contributor.googleauthorKim, Lyung-Joo-
dc.contributor.googleauthorPark, Jae-Woo-
dc.relation.code2012100429-
dc.sector.campusS-
dc.sector.daehakCOLLEGE OF ENGINEERING[S]-
dc.sector.departmentDEPARTMENT OF CIVIL AND ENVIRONMENTAL ENGINEERING-
dc.identifier.pidjaewoopark-
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > CIVIL AND ENVIRONMENTAL ENGINEERING(건설환경공학과) > Articles
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