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Functionalized boron nitride membranes with multipurpose and super-stable semi-permeability in solvents
journal contribution
posted on 2018-11-14, 00:00 authored by Cheng Chen, Dan LiuDan Liu, J Wang, Lifeng WangLifeng Wang, J Sun, Weiwei LeiWeiwei LeiMultipurpose and super-stable molecular sieving membranes exhibit great potential for mixture separation at low energy cost within extreme chemical and thermal environments. However, nanoporous membranes are currently only used in a relatively limited range of solvents. When used in some solvents, these membranes are easily degraded at high temperatures or in harsh chemical environments. Herein, we report ultrathin functionalized boron nitride (FBN) membranes that provide unprecedented multipurpose molecular separation. FBN membranes show high permeation and selectivity in aqueous and organic solutions, and they also maintain super-stable sieving performance even after exposure to a high temperature of up to 200 °C for 1 hour. Also, FBN membranes are stable in a wide range of solvents (water, ethanol, acetone, toluene, and hexane) for up to 24 hours as well as in extreme pH conditions (0.5 mol L−1 NaOH, 0.5 mol L−1 H2SO4, and 0.5 mol L−1 HNO3) for 24 hours. These multipurpose, super-stable FBN molecular-sieving membranes can potentially be used in a wide range of high throughput manufacturing processes to facilitate large-scale molecular separation to meet many industrial requirements.
History
Journal
Journal of materials chemistry AVolume
6Issue
42Pagination
21104 - 21109Publisher
Royal Society of ChemistryLocation
Cambridge, Eng.Publisher DOI
ISSN
2050-7488eISSN
2050-7496Language
engPublication classification
C1 Refereed article in a scholarly journalCopyright notice
2018, The Royal Society of ChemistryUsage metrics
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No categories selectedKeywords
boron nitride membranessolventsmolecular sievingmixture separationchemicalthermalnanoporous membranesScience & TechnologyPhysical SciencesTechnologyChemistry, PhysicalEnergy & FuelsMaterials Science, MultidisciplinaryChemistryMaterials ScienceGRAPHENE OXIDE MEMBRANESMOLECULAR SEPARATIONNANOFILTRATIONNANOSHEETSULTRATHINFABRICATION
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