Tailored pore gradient in phenolic membranes for adjustable permselectivity by leveraging different poloxamers

DC FieldValueLanguage
dc.contributor.authorGuo, Leiming
dc.contributor.authorSteinhart, Martin
dc.contributor.authorYang, Yong
dc.contributor.authorZhu, Liang
dc.date.accessioned2021-12-23T16:16:09Z-
dc.date.available2021-12-23T16:16:09Z-
dc.date.issued2020
dc.identifier.issn13835866
dc.identifier.urihttps://osnascholar.ub.uni-osnabrueck.de/handle/unios/11744-
dc.description.abstractCost-affordable phenolic membranes having gradient nanostructures can be facilely synthesized from resol oligomers in the presence of ZnCl2 and poloxamers. The gradient nanostructures are formed by stacking phenolic nanoparticles with gradually enlarged diameters as the distance from the upper surface increases. The use of poloxamers for creating gelation surroundings is of great significance for controlling the nucleation and growth of phenolic nanoparticles, which in turn dictates the performance of the phenolic membranes thus-produced. Hence, a study of the effects of poloxamers species on the preparation of the phenolic membranes is highly demanded since such robust membranes have much potential to be scale up for mass production. Herein, the poloxamer Pluronic F127 (EO106-PO70-EO106; EO = ethyleneoxide, PO = propyleneoxide) was introduced in the membrane-forming formulations. As opposed to P123 (EO20-PO70-EO20) that we used previously, F127 possessing extended PEO chains can delay the gelation during membrane formation. Hence, the phenolic nucleates are able to grow for longer durations, leading to the generation of more distinct gradient nanostructures in the phenolic membranes. Enhanced permeance can then be realized with F127-derived phenolic membranes. We also demonstrate that L31 (EO1-PO22-EO1) with merely single terminal EO units at the ends of the PPO block could be used to prepare gradient phenolic membranes. This work is not only much helpful to deeply understand the design of the structural gradient in phenolic membranes, but capable of sheding light on the development of such intriguing structures for water purification.
dc.description.sponsorshipEuropean Research Council (ERC-CoG-2014) [646742 INCANA]; Science and Technology Support Project of Jiangsu Provincial Sci. & Tech. Department [BY2016061-19]; We acknowledge support by the European Research Council (ERC-CoG-2014, Project 646742 INCANA) and the Science and Technology Support Project of Jiangsu Provincial Sci. & Tech. Department (No.BY2016061-19).
dc.language.isoen
dc.publisherELSEVIER
dc.relation.ispartofSEPARATION AND PURIFICATION TECHNOLOGY
dc.subjectBLOCK-COPOLYMER
dc.subjectEngineering
dc.subjectEngineering, Chemical
dc.subjectGelation
dc.subjectGRAPHENE OXIDE MEMBRANES
dc.subjectMembrane separation
dc.subjectPhenolic membranes
dc.subjectPoloxamers
dc.subjectPore gradient
dc.subjectSEPARATION
dc.subjectULTRATHIN
dc.subjectWATER
dc.titleTailored pore gradient in phenolic membranes for adjustable permselectivity by leveraging different poloxamers
dc.typejournal article
dc.identifier.doi10.1016/j.seppur.2020.116818
dc.identifier.isiISI:000527572200072
dc.description.volume242
dc.contributor.orcid0000-0002-5241-8498
dc.contributor.orcid0000-0001-9060-9319
dc.contributor.researcheridB-7811-2011
dc.contributor.researcheridO-7590-2018
dc.identifier.eissn18733794
dc.publisher.placeRADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS
dcterms.isPartOf.abbreviationSep. Purif. Technol.
dcterms.oaStatusGreen Submitted
crisitem.author.orcid0000-0002-5241-8498-
crisitem.author.netidStMa946-
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