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dc.contributor.authorWu, Mengchun
dc.contributor.authorShi, Yusuf
dc.contributor.authorChang, Jian
dc.contributor.authorLi, Renyuan
dc.contributor.authorOng, Chi Siang
dc.contributor.authorWang, Peng
dc.date.accessioned2018-05-23T06:10:15Z
dc.date.available2018-05-23T06:10:15Z
dc.date.issued2018-05-18
dc.identifier.citationWu M, Shi Y, Chang J, Li R, Ong C, et al. (2018) Sunlight Induced Rapid Oil Absorption and Passive Room-Temperature Release: An Effective Solution toward Heavy Oil Spill Cleanup. Advanced Materials Interfaces: 1800412. Available: http://dx.doi.org/10.1002/admi.201800412.
dc.identifier.issn2196-7350
dc.identifier.doi10.1002/admi.201800412
dc.identifier.urihttp://hdl.handle.net/10754/627944
dc.description.abstractRapid cleanup and easy recovery of spilled heavy oils is always a great challenge due to their high viscosity (>103 mPa s). One of the efficient methods to absorb highly viscous oils is to reduce their viscosity by increasing their temperature. In this work, the authors integrate the sunlight-induced light-to-heat conversion effect of polypyrrole (PPy) and thermoresponsive property of poly(N-isopropylacrylamide) (PNIPAm) into the melamine sponge, which successfully delivers a fast heavy oil absorption under sunlight and passive oil release underwater at room temperature. Thanks to the rationally designed functionalities, the PNIPAm/PPy functionalized sponges possess oleophilicity and hydrophobicity under sunlight. Due to the photothermal effect of PPy, the sponges locally heat up contacting heavy oil under sunlight and reduce its viscosity to a point where the oil voluntarily flow into the pores of the sponge. The material in this work is able to rapidly absorb the heavy oil with room temperature viscosity as high as ≈1.60 × 105 mPa s. The absorbed oil can be passively forced out the sponge underwater at room temperature due to the hydrophilicity of PNIPAm. The sunlight responsive and multifunctional sponge represents a meaningful attempt in coming up with a sustainable solution toward heavy oil spill.
dc.description.sponsorshipThis work was supported by the King Abdullah University of Science and Technology (KAUST) center competitive fund (CCF) awarded to Water Desalination and Reuse Center (WDRC).
dc.publisherWiley
dc.relation.urlhttps://onlinelibrary.wiley.com/doi/abs/10.1002/admi.201800412
dc.rightsArchived with thanks to Advanced Materials Interfaces
dc.titleSunlight Induced Rapid Oil Absorption and Passive Room-Temperature Release: An Effective Solution toward Heavy Oil Spill Cleanup
dc.typeArticle
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.contributor.departmentEnvironmental Science and Engineering Program
dc.identifier.journalAdvanced Materials Interfaces
dc.eprint.versionPost-print
kaust.personWu, Mengchun
kaust.personShi, Yusuf
kaust.personChang, Jian
kaust.personLi, Renyuan
kaust.personOng, Chi Siang
kaust.personWang, Peng


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