BROWSE

Related Researcher

Author

Kang, Hyun-Wook
3D Biofabrication Lab (3BL)
Research Interests
  • 3D Bioprinting, tissue engineering and regenerative medicine, Body-on-a-chip

ITEM VIEW & DOWNLOAD

Bio-inspired hollow PDMS sponge for enhanced oil-water separation

DC FieldValueLanguage
dc.contributor.authorShin, Jung Hwalko
dc.contributor.authorHeo, Jun-Hoko
dc.contributor.authorJeon, Seunggyuko
dc.contributor.authorPark, Jeong Hunko
dc.contributor.authorKim, Suhyeonko
dc.contributor.authorKang, Hyun-Wookko
dc.date.available2018-11-01T08:36:04Z-
dc.date.created2018-10-26ko
dc.date.issued201903ko
dc.identifier.citationJOURNAL OF HAZARDOUS MATERIALS, v.365, no., pp.494 - 501ko
dc.identifier.issn0304-3894ko
dc.identifier.urihttp://scholarworks.unist.ac.kr/handle/201301/25058-
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0304389418309877?via%3Dihubko
dc.description.abstractOil 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.ko
dc.languageENGko
dc.publisherELSEVIER SCIENCE BVko
dc.subjectoil-water separationspongepolydimethylsiloxaneabsorption capacityko
dc.titleBio-inspired hollow PDMS sponge for enhanced oil-water separationko
dc.typeARTICLEko
dc.identifier.pid2461null
dc.identifier.rimsid31209ko
dc.type.rimsAko
dc.identifier.doihttp://dx.doi.org/10.1016/j.jhazmat.2018.10.078ko
Appears in Collections:
SLS_Journal Papers

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show simple item record

qr_code

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU