Lead Ion Removal Characteristics of Poly(lactic acid)/Hydroxyapatite Composite Foams Prepared by Supercritical CO2 Process
DC Field | Value | Language |
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dc.contributor.author | Jeon, Byung Jin | - |
dc.contributor.author | Jeong, Young Gyu | - |
dc.contributor.author | Min, Byung Gil | - |
dc.contributor.author | Lyoo, Won Seok | - |
dc.contributor.author | Lee, Sang Cheol | - |
dc.date.available | 2021-04-29T08:43:59Z | - |
dc.date.created | 2020-06-16 | - |
dc.date.issued | 2011-09 | - |
dc.identifier.issn | 0272-8397 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/19218 | - |
dc.description.abstract | We have prepared a series of poly(lactic acid)/hydroxyapatite (PLA/HAp) composite foams by a supercritical CO2 foaming process and investigated the lead ion (Pb2+) removal performances of the foam samples in batch aqueous solutions (foam sample of 5 g, aqueous solution of 500 ml, initial Pb2+ ion concentration of 275 mg/l, pH values of 2.0-6.0) at 25 degrees C. It is characterized that the porosity of the foams decreases from 96.3% to 50.3% as the HAp content increases from 0 to 40 wt%, although all the foam samples exhibit well-developed open porous structures. The maximum capacity of Pb2+ ions removed by the composite foams increases from 81.2 to 140.5 mg/g with increasing the HAp content from 10 to 40 wt%, due to the increased adsorption sites of HAp for Pb2+ ions. However, the removal kinetic analysis based on the pseudo-second order model demonstrates that the Pb2+ ion removal rate is slightly faster for the composite foams with higher porosity (i.e., lower HAp content). The maximum Pb2+ ion removal capacity of a given composite foam increases from 20.2 to 140.5 mg/g with increasing the initial pH value from 2.0 to 5.0 but it decreases slightly to 111.7 mg/g at the initial pH value of 6.0. POLYM. COMPOS., 32: 1408-1415, 2011. (C) 2011 Society of Plastics Engineers | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | WILEY-BLACKWELL | - |
dc.subject | INORGANIC CATION-EXCHANGERS | - |
dc.subject | HEAVY-METAL IONS | - |
dc.subject | AQUEOUS-SOLUTIONS | - |
dc.subject | SYNTHETIC HYDROXYAPATITES | - |
dc.subject | WASTE-WATER | - |
dc.subject | IMMOBILIZATION | - |
dc.subject | SORPTION | - |
dc.subject | PB | - |
dc.subject | CD | - |
dc.subject | ADSORPTION | - |
dc.title | Lead Ion Removal Characteristics of Poly(lactic acid)/Hydroxyapatite Composite Foams Prepared by Supercritical CO2 Process | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Min, Byung Gil | - |
dc.contributor.affiliatedAuthor | Lee, Sang Cheol | - |
dc.identifier.doi | 10.1002/pc.21164 | - |
dc.identifier.wosid | 000294461700011 | - |
dc.identifier.bibliographicCitation | POLYMER COMPOSITES, v.32, no.9, pp.1408 - 1415 | - |
dc.relation.isPartOf | POLYMER COMPOSITES | - |
dc.citation.title | POLYMER COMPOSITES | - |
dc.citation.volume | 32 | - |
dc.citation.number | 9 | - |
dc.citation.startPage | 1408 | - |
dc.citation.endPage | 1415 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Polymer Science | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Composites | - |
dc.relation.journalWebOfScienceCategory | Polymer Science | - |
dc.subject.keywordPlus | INORGANIC CATION-EXCHANGERS | - |
dc.subject.keywordPlus | HEAVY-METAL IONS | - |
dc.subject.keywordPlus | AQUEOUS-SOLUTIONS | - |
dc.subject.keywordPlus | SYNTHETIC HYDROXYAPATITES | - |
dc.subject.keywordPlus | WASTE-WATER | - |
dc.subject.keywordPlus | IMMOBILIZATION | - |
dc.subject.keywordPlus | SORPTION | - |
dc.subject.keywordPlus | PB | - |
dc.subject.keywordPlus | CD | - |
dc.subject.keywordPlus | ADSORPTION | - |
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