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Kang, Hyun-Wook
3D Biofabrication Lab.
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dc.citation.endPage 501 -
dc.citation.startPage 494 -
dc.citation.volume 365 - Shin, Jung Hwal - Heo, Jun-Ho - Jeon, Seunggyu - Park, Jeong Hun - Kim, Suhyeon - Kang, Hyun-Wook - 2023-12-21T19:36:55Z - 2023-12-21T19:36:55Z - 2018-10-26 - 2019-03 -
dc.description.abstract Oil spills from disasters such as the sinking of ships and the discharge of oily wastes cause serious environmental problems. Polydimethylsiloxane(PDMS) sponges are valuable tools for isolating spilled oil. Here, we propose new PDMS sponges with bio-inspired design and enhanced absorption capacities. 3D printing was used to produce templates having negative designs, and after being filled with PDMS, the templates were selectively dissolved. Through this, PDMS sponges with well-interconnected and controlled porosities were produced within 10% error. The wettability of sponges with various pore sizes and line widths was investigated. The surfaces were found to be highly hydrophobic, with water contact angles of 100-143°, and oleophilic, with oil contact angles of ∼0°. The sponge fabricated with line width of 200 μm and pore size of 400 μm showed the highest hydrophobicity and oleophilicity. These parameters were used to produce the surfaces of hollow sponges having bio-inspired design that mimics the water absorption and storage functions of cactus. Repeated oil-water separation testing was conducted, and the absorption capacities were compared with those of non-hollow and conventional sponges. The new design showed absorption capacity up to 3.7 times that of the sponges. The bio-inspired PDMS sponge provides a significant advance in oil-water separation ability. -
dc.identifier.bibliographicCitation JOURNAL OF HAZARDOUS MATERIALS, v.365, pp.494 - 501 -
dc.identifier.doi 10.1016/j.jhazmat.2018.10.078 -
dc.identifier.issn 0304-3894 -
dc.identifier.scopusid 2-s2.0-85056712752 -
dc.identifier.uri -
dc.identifier.url -
dc.identifier.wosid 000456761000052 -
dc.language 영어 -
dc.publisher ELSEVIER SCIENCE BV -
dc.title Bio-inspired hollow PDMS sponge for enhanced oil-water separation -
dc.type Article -
dc.description.isOpenAccess FALSE -
dc.relation.journalWebOfScienceCategory Engineering, Environmental; Environmental Sciences -
dc.relation.journalResearchArea Engineering; Environmental Sciences & Ecology -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.subject.keywordAuthor oil-water separation -
dc.subject.keywordAuthor sponge -
dc.subject.keywordAuthor polydimethylsiloxane -
dc.subject.keywordAuthor absorption capacity -
dc.subject.keywordPlus POROUS MEMBRANE -
dc.subject.keywordPlus POLYDIMETHYLSILOXANE -
dc.subject.keywordPlus ABSORPTION -
dc.subject.keywordPlus SURFACE -
dc.subject.keywordPlus FABRICATION -
dc.subject.keywordPlus RUBBER -
dc.subject.keywordPlus REMOVAL -
dc.subject.keywordPlus AEROGEL -
dc.subject.keywordPlus PORES -


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