Zirconium-based metal-organic frameworks: the relation between linker connectivity, structure stability, and catalytic activity towards organophosphates

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388980%3A_____%2F24%3A00587753" target="_blank" >RIV/61388980:_____/24:00587753 - isvavai.cz</a>

Alternative codes found

RIV/44555601:13520/24:43898490

Result on the web

<a href="https://hdl.handle.net/11104/0355312" target="_blank" >https://hdl.handle.net/11104/0355312</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/d4qi01366b" target="_blank" >10.1039/d4qi01366b</a>

Result language

angličtina

Original language name

Zirconium-based metal-organic frameworks: the relation between linker connectivity, structure stability, and catalytic activity towards organophosphates

Original language description

Metal-organic frameworks (MOFs) are studied for many applications, however, there are only a few examples of commercialization. One of the reasons behind this is that the stability of MOFs is still unknown. Much attention has been devoted to the rational synthesis of novel MOFs, yet the predictability of MOF stability is so far limited. The present study compares the stability in a water environment with pH ranging from 3.0 to 11.0 of four zirconium-based MOFs constructed from ditopic, tritopic, and tetratopic linkers, namely UiO-66 (benzene-1,4-dicarboxylic acid), MOF-808 (benzene-1,3,5-tricarboxylic acid), MIP-200 (5,5 '-methylenediisophthalic acid), and PCN-222 (5,10,15,20-tetrakis(4-carboxyphenyl)porphyrin). Finally, to delineate the nature of the defects induced by the linker release, we tested the MOFs treated at a certain pH for the degradation of model organic pollutant methyl paraoxon. It is clear that both MOFs based on tetratopic linkers are much more stable than UiO-66 and MOF-808 composed of di- and tritopic linkers, respectively. It should be noted that the kinetics of the linker release were also significantly slower for tetratopic linkers. At the same time, the connectivity of the Zr6 cluster did not play such an important role. MIP-200 proved to be the most stable MOF from the series in an aqueous environment, however, the loss of a small amount of monocarboxylic acid from the structure allowed thermal recrystallization of MIP-200 to an unknown phase so far.

Czech name

—

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

—

OECD FORD branch

10402 - Inorganic and nuclear chemistry

Project

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

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2024

Confidentiality

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

Name of the periodical

Inorganic Chemistry Frontiers

ISSN

2052-1553

e-ISSN

2052-1553

Volume of the periodical

11

Issue of the periodical within the volume

16

Country of publishing house

GB - UNITED KINGDOM

Number of pages

17

Pages from-to

5319-5335

UT code for WoS article

001265353600001

EID of the result in the Scopus database

2-s2.0-85198635006