Show simple item record

dc.contributor.authorChen, Wei
dc.contributor.authorChen, Shuyu
dc.contributor.authorLiang, Tengfei
dc.contributor.authorZhang, Qiang
dc.contributor.authorFan, Zhongli
dc.contributor.authorYin, Hang
dc.contributor.authorHuang, Kuo-Wei
dc.contributor.authorZhang, Xixiang
dc.contributor.authorLai, Zhiping
dc.contributor.authorSheng, Ping
dc.date.accessioned2018-04-09T07:37:28Z
dc.date.available2018-04-09T07:37:28Z
dc.date.issued2018-03-05
dc.identifier.citationChen W, Chen S, Liang T, Zhang Q, Fan Z, et al. (2018) High-flux water desalination with interfacial salt sieving effect in nanoporous carbon composite membranes. Nature Nanotechnology. Available: http://dx.doi.org/10.1038/s41565-018-0067-5.
dc.identifier.issn1748-3387
dc.identifier.issn1748-3395
dc.identifier.pmid29507347
dc.identifier.doi10.1038/s41565-018-0067-5
dc.identifier.urihttp://hdl.handle.net/10754/627420
dc.description.abstractFreshwater flux and energy consumption are two important benchmarks for the membrane desalination process. Here, we show that nanoporous carbon composite membranes, which comprise a layer of porous carbon fibre structures grown on a porous ceramic substrate, can exhibit 100% desalination and a freshwater flux that is 3-20 times higher than existing polymeric membranes. Thermal accounting experiments demonstrated that the carbon composite membrane saved over 80% of the latent heat consumption. Theoretical calculations combined with molecular dynamics simulations revealed the unique microscopic process occurring in the membrane. When the salt solution is stopped at the openings to the nanoscale porous channels and forms a meniscus, the vapour can rapidly transport across the nanoscale gap to condense on the permeate side. This process is driven by the chemical potential gradient and aided by the unique smoothness of the carbon surface. The high thermal conductivity of the carbon composite membrane ensures that most of the latent heat is recovered.
dc.description.sponsorshipCommercial PTFE membranes and FO membranes were provided by N. Ghaffour and T. Zhang from the KAUST Water Desalination and Reuse Center. Z.L. acknowledges support from KAUST (grant URF/1/1723) and KACST (grant RGC/3/1614). P.S. acknowledges support from KAUST (Special Partnerships Award number UK-C0016 and grant SA-C0040), HKUST (grant SRFI 11/SC02) and the William Mong Institute of Nanoscience and Technology (grant G5537-E).
dc.publisherSpringer Nature
dc.relation.urlhttps://www.nature.com/articles/s41565-018-0067-5
dc.rightsThe final publication is available at Springer via http://dx.doi.org/10.1038/s41565-018-0067-5
dc.titleHigh-flux water desalination with interfacial salt sieving effect in nanoporous carbon composite membranes
dc.typeArticle
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Center
dc.contributor.departmentChemical Engineering Program
dc.contributor.departmentChemical Science Program
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentExtreme Computing Research Center
dc.contributor.departmentHomogeneous Catalysis Laboratory (HCL)
dc.contributor.departmentKAUST Catalysis Center (KCC)
dc.contributor.departmentMaterial Science and Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalNature Nanotechnology
dc.eprint.versionPost-print
dc.contributor.institutionCAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, China
dc.contributor.institutionDepartment of Physics, Hong Kong University of Science and Technology, Kowloon, Hong Kong, China.
dc.contributor.institutionSchool of Astronautics, Northwestern Polytechnical University, Xi’an, China
dc.contributor.institutionInstitute for Advanced Study, Hong Kong University of Science and Technology, Kowloon, Hong Kong, China
dc.identifier.arxividarXiv:1604.07567
kaust.personChen, Wei
kaust.personZhang, Qiang
kaust.personFan, Zhongli
kaust.personYin, Hang
kaust.personHuang, Kuo-Wei
kaust.personZhang, Xixiang
kaust.personLai, Zhiping
kaust.grant.numberURF/1/1723
kaust.grant.numberUK-C0016
kaust.grant.numberSA-C0040
dc.date.published-online2018-03-05
dc.date.published-print2018-04


Files in this item

Thumbnail
Name:
Manuscript-NN.pdf
Size:
1.458Mb
Format:
PDF
Description:
Accepted Manuscript

This item appears in the following Collection(s)

Show simple item record