DC Field | Value | Language |
---|---|---|
dc.contributor.author | SUNGBIN, JU | - |
dc.contributor.author | Eom | - |
dc.contributor.author | Sang Youl Kim | - |
dc.contributor.author | Sung Yeon Hwang | - |
dc.contributor.author | Dong Soo Hwang | - |
dc.contributor.author | Dongyeop X. Oh | - |
dc.contributor.author | Jeyoung Park | - |
dc.date.accessioned | 2020-08-05T05:50:04Z | - |
dc.date.available | 2020-08-05T05:50:04Z | - |
dc.date.created | 2020-02-28 | - |
dc.date.issued | 2020-07 | - |
dc.identifier.issn | 1385-8947 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/103943 | - |
dc.description.abstract | A key requirement for materials that adsorb pollutants in aqueous media is the balance between efficiency and biodegradation owing to rising microplastic pollution. Hyperbranched polyamidoamine-based microhydrogel particles from ethylene diamine (EDA) monomer demonstrate high absorbance activity for removing heavy metal ions, yet are vulnerable to hydrolysis. Here, we copolymerize lysine diketopiperazine (L-DKP) and EDA with N,N'-methylenebisacrylamide via a Michael addition reaction-mediated inverse suspension polymerization to obtain highly efficient Cu2+-absorbing materials with controlled degradation in aqueous media. When the L-DKP content is increased, which replaces EDA, degradation is typically prevented at the cost of absorption capacity. At optimal L-DKP content (20 mol% per fed diamine monomers), the microparticle exhibits a performance of 159 Cu2+-mg/g, which is comparable to that of the EDA-only microparticles, but with higher degradation resistance, as only 38 wt% was lost at 37 degrees C after two weeks. During the hydrolysis of microparticles without L-DKP, the absorbed Cu2+ ions were released, polluting the aquatic environment. In the presence of L-DKP, Cu2+ ions were significantly retained within the working time. In contrast to synthetic microbeads such as polystyrene, accidently leaked L-DKP-based microparticles decompose within six months. These results provide an industrial, environment-friendly, and long-lasting absorbent for water purification. | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.relation.isPartOf | CHEMICAL ENGINEERING JOURNAL | - |
dc.subject | Addition reactions | - |
dc.subject | Amines | - |
dc.subject | Amino acids | - |
dc.subject | Biodegradation | - |
dc.subject | Copper | - |
dc.subject | Efficiency | - |
dc.subject | Ethylene | - |
dc.subject | Heavy metals | - |
dc.subject | Hydrolysis | - |
dc.subject | Metal ions | - |
dc.subject | Monomers | - |
dc.subject | Pollution | - |
dc.subject | Suspensions (fluids) | - |
dc.subject | Absorption capacity | - |
dc.subject | Aquatic environments | - |
dc.subject | Controlled degradation | - |
dc.subject | Degradation resistance | - |
dc.subject | Environment friendly | - |
dc.subject | Inverse suspension polymerization | - |
dc.subject | Methylene bisacrylamide | - |
dc.subject | Michael addition reactions | - |
dc.subject | Water treatment | - |
dc.title | Lysine-cyclodipeptide-based polyamidoamine microparticles: Balance between the efficiency of copper ion removal and degradation in water | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.cej.2019.123493 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | CHEMICAL ENGINEERING JOURNAL, v.391 | - |
dc.identifier.wosid | 000545945100020 | - |
dc.citation.title | CHEMICAL ENGINEERING JOURNAL | - |
dc.citation.volume | 391 | - |
dc.contributor.affiliatedAuthor | SUNGBIN, JU | - |
dc.contributor.affiliatedAuthor | Dong Soo Hwang | - |
dc.identifier.scopusid | 2-s2.0-85088363652 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | CYCLIC DIPEPTIDE DERIVATIVES | - |
dc.subject.keywordPlus | LOW-COST ADSORBENTS | - |
dc.subject.keywordPlus | HEAVY-METAL IONS | - |
dc.subject.keywordPlus | PS-EDTA RESIN | - |
dc.subject.keywordPlus | WASTE-WATER | - |
dc.subject.keywordPlus | AQUEOUS-SOLUTIONS | - |
dc.subject.keywordPlus | ADSORPTION PERFORMANCE | - |
dc.subject.keywordPlus | PAMAM DENDRIMERS | - |
dc.subject.keywordPlus | CU-II | - |
dc.subject.keywordPlus | DIKETOPIPERAZINE | - |
dc.subject.keywordAuthor | Water purification | - |
dc.subject.keywordAuthor | Heavy metal ion removal | - |
dc.subject.keywordAuthor | Microparticle | - |
dc.subject.keywordAuthor | Polyamidoamine | - |
dc.subject.keywordAuthor | Diketopiperazine | - |
dc.subject.keywordAuthor | Degradation | - |
dc.relation.journalWebOfScienceCategory | Engineering, Environmental | - |
dc.relation.journalWebOfScienceCategory | Engineering, Chemical | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Engineering | - |
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