Synthesis of Sub-10 nm Two-Dimensional Covalent Organic Thin Film with Sharp Molecular Sieving Nanofiltration

Handle URI:
http://hdl.handle.net/10754/627417
Title:
Synthesis of Sub-10 nm Two-Dimensional Covalent Organic Thin Film with Sharp Molecular Sieving Nanofiltration
Authors:
Gadwal, Ikhlas; Sheng, Guan; Thankamony, Roshni Lilly; Liu, Yang ( 0000-0003-4313-0932 ) ; Li, Huifang; Lai, Zhiping ( 0000-0001-9555-6009 )
Abstract:
We demonstrated here a novel and facile synthesis of two-dimensional (2D) covalent organic thin film with pore size around 1.5 nm using a planar, amphiphilic and substituted heptacyclic truxene based triamine and a simple dialdehyde as building blocks by dynamic imine bond formation at the air/water interface using Langmuir–Blodgett (LB) method. Optical microscopy (OM), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and atomic force microscopy (AFM), all unanimously showed the formation of large, molecularly thin and free-standing membrane that can be easily transferred on different substrate surfaces. The 2D membrane supported on a porous polysulfone showed a rejection rate of 64 and 71% for NaCl and MgSO4, respectively, and a clear molecular sieving at molecular size around 1.3 nm, which demonstrated a great potential in the application of pretreatment of seawater desalination and separation of organic molecules.
KAUST Department:
Advanced Membranes and Porous Materials Research Center; Physical Sciences and Engineering (PSE) Division; Chemical and Biological Engineering Program; KAUST Solar Center (KSC)
Citation:
Gadwal I, Sheng G, Thankamony RL, Liu Y, Li H, et al. (2018) Synthesis of Sub-10 nm Two-Dimensional Covalent Organic Thin Film with Sharp Molecular Sieving Nanofiltration. ACS Applied Materials & Interfaces. Available: http://dx.doi.org/10.1021/acsami.7b19450.
Publisher:
American Chemical Society (ACS)
Journal:
ACS Applied Materials & Interfaces
KAUST Grant Number:
FCC/1/1972-19-01
Issue Date:
6-Apr-2018
DOI:
10.1021/acsami.7b19450
Type:
Article
ISSN:
1944-8244; 1944-8252
Sponsors:
We acknowledge the support from the KAUST center competitive fund FCC/1/1972-19-01.
Additional Links:
https://pubs.acs.org/doi/10.1021/acsami.7b19450
Appears in Collections:
Articles; Advanced Membranes and Porous Materials Research Center; Physical Sciences and Engineering (PSE) Division; Chemical and Biological Engineering Program; KAUST Solar Center (KSC)

Full metadata record

DC FieldValue Language
dc.contributor.authorGadwal, Ikhlasen
dc.contributor.authorSheng, Guanen
dc.contributor.authorThankamony, Roshni Lillyen
dc.contributor.authorLiu, Yangen
dc.contributor.authorLi, Huifangen
dc.contributor.authorLai, Zhipingen
dc.date.accessioned2018-04-09T07:36:27Z-
dc.date.available2018-04-09T07:36:27Z-
dc.date.issued2018-04-06en
dc.identifier.citationGadwal I, Sheng G, Thankamony RL, Liu Y, Li H, et al. (2018) Synthesis of Sub-10 nm Two-Dimensional Covalent Organic Thin Film with Sharp Molecular Sieving Nanofiltration. ACS Applied Materials & Interfaces. Available: http://dx.doi.org/10.1021/acsami.7b19450.en
dc.identifier.issn1944-8244en
dc.identifier.issn1944-8252en
dc.identifier.doi10.1021/acsami.7b19450en
dc.identifier.urihttp://hdl.handle.net/10754/627417-
dc.description.abstractWe demonstrated here a novel and facile synthesis of two-dimensional (2D) covalent organic thin film with pore size around 1.5 nm using a planar, amphiphilic and substituted heptacyclic truxene based triamine and a simple dialdehyde as building blocks by dynamic imine bond formation at the air/water interface using Langmuir–Blodgett (LB) method. Optical microscopy (OM), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and atomic force microscopy (AFM), all unanimously showed the formation of large, molecularly thin and free-standing membrane that can be easily transferred on different substrate surfaces. The 2D membrane supported on a porous polysulfone showed a rejection rate of 64 and 71% for NaCl and MgSO4, respectively, and a clear molecular sieving at molecular size around 1.3 nm, which demonstrated a great potential in the application of pretreatment of seawater desalination and separation of organic molecules.en
dc.description.sponsorshipWe acknowledge the support from the KAUST center competitive fund FCC/1/1972-19-01.en
dc.publisherAmerican Chemical Society (ACS)en
dc.relation.urlhttps://pubs.acs.org/doi/10.1021/acsami.7b19450en
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Materials & Interfaces, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/10.1021/acsami.7b19450.en
dc.subjectimine bonden
dc.subjectLangmuir−Blodgetten
dc.subjectnanofiltrationen
dc.subjectseparationen
dc.subjecttwo-dimensional (2D) membranesen
dc.titleSynthesis of Sub-10 nm Two-Dimensional Covalent Organic Thin Film with Sharp Molecular Sieving Nanofiltrationen
dc.typeArticleen
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Centeren
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentChemical and Biological Engineering Programen
dc.contributor.departmentKAUST Solar Center (KSC)en
dc.identifier.journalACS Applied Materials & Interfacesen
dc.eprint.versionPost-printen
kaust.authorGadwal, Ikhlasen
kaust.authorSheng, Guanen
kaust.authorThankamony, Roshni Lillyen
kaust.authorLiu, Yangen
kaust.authorLi, Huifangen
kaust.authorLai, Zhipingen
kaust.grant.numberFCC/1/1972-19-01en
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