Two-dimensional MOF-based liquid marbles: surface energy calculations and efficient oil-water separation using a ZIF-9-III@PVDF membrane

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27640%2F21%3A10248099" target="_blank" >RIV/61989100:27640/21:10248099 - isvavai.cz</a>

Alternative codes found

RIV/61989100:27740/21:10248099 RIV/61989592:15310/21:73610144 RIV/61989592:15640/21:73610144

Result on the web

<a href="https://pubs.rsc.org/en/content/articlelanding/2021/TA/D1TA05835E" target="_blank" >https://pubs.rsc.org/en/content/articlelanding/2021/TA/D1TA05835E</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/d1ta05835e" target="_blank" >10.1039/d1ta05835e</a>

Result language

angličtina

Original language name

Two-dimensional MOF-based liquid marbles: surface energy calculations and efficient oil-water separation using a ZIF-9-III@PVDF membrane

Original language description

Superhydrophobic MOF-nanosheets assembled on the outside of an aqueous droplet form &apos;liquid marbles&apos;. A facile mechanochemical-based synthesis followed by ultrasonication was used to prepare two-dimensional superhydrophobic-oleophilic MOF nanosheets of a Co2+-based zeolitic imidazolate framework, namely ZIF-9-III ([Co-4(bIm)(16)] with bIm(-) = benzimidazolate). The resulting ZIF-9-III showed excellent hydrophobicity (advancing water contact angle of 144 degrees) and oleophilicity (oil contact angle of approximate to 0 degrees). The superhydrophobic behavior originated from its predominant outer (002) surface, which featured nanoscale corrugation caused by the exposed benzimidazole groups. This behavior was corroborated by inverse gas chromatography measurements to determine the surface energies of bulk exfoliated 2D ZIF-9-III nanosheets and 3D ZIF-9-I. Taking advantage of the unique surface properties, including low surface energy and good moisture stability, we prepared ZIF-9-III@PVDF (PVDF = polyvinylidene fluoride) membranes following the non-solvent induced phase inversion (NIPS) process. The resulting membranes were exploited in real-time oil/water separation and featured remarkably high adsorption capacity and anti-staining properties. Therefore, this work opens the door to developing new superhydrophobic MOF-based composite materials with permeant porosity, which may enable applications in self-cleaning membranes for oil-water separation.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20501 - Materials engineering

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Materials Chemistry A

ISSN

2050-7488

e-ISSN

—

Volume of the periodical

9

Issue of the periodical within the volume

41

Country of publishing house

GB - UNITED KINGDOM

Number of pages

9

Pages from-to

23651-23659

UT code for WoS article

000708142200001

EID of the result in the Scopus database

2-s2.0-85118298936