Au NPs fabricated on biguanidine-modified Zr-UiO-66 MOFs: a competent reusable heterogeneous nanocatalyst in the green synthesis of propargylamines

In this study, we utilized functionalized metal organic frameworks (MOFs) as a host matrix to embed gold (Au) nanoparticles. The three-dimensional Zr-based metal-organic framework UiO-66-NH 2 was functionalized with the biguanidine moiety using a post-synthetic modification (PSM) strategy, and then...

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Bibliographic Details
Published inNew journal of chemistry Vol. 46; no. 6; pp. 2829 - 2836
Main Authors Veisi, Hojat, Sayadi, Marzieh, Morakabati, Neko, Tamoradi, Taiebeh, Karmakar, Bikash
Format Journal Article
LanguageEnglish
Published CAMBRIDGE Royal Soc Chemistry 07.02.2022
Royal Society of Chemistry
Subjects
Aldehydes
Alkynes
Amines
Chemistry
Chemistry, Multidisciplinary
Gold
Infrared spectroscopy
Metal-organic frameworks
Morphology
Nanocomposites
Nanoparticles
Physical Sciences
Science & Technology
Spectrum analysis
Zirconium
GOLD NANOPARTICLES
ANTICANCER ACTIVITY
ALDEHYDE
METAL-ORGANIC FRAMEWORKS
COUPLING REACTIONS
SILVER
CATALYST
PALLADIUM NANOPARTICLES
RECYCLABLE NANOCATALYST
ALKYNE
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Summary:In this study, we utilized functionalized metal organic frameworks (MOFs) as a host matrix to embed gold (Au) nanoparticles. The three-dimensional Zr-based metal-organic framework UiO-66-NH 2 was functionalized with the biguanidine moiety using a post-synthetic modification (PSM) strategy, and then gold salt was successfully immobilized onto the surface of the biguanidine-functionalized Zr-MOF. The morphological and physicochemical features of the material were determined using several advanced techniques like FT-IR spectroscopy, SEM, TEM, EDX spectroscopy, elemental mapping, XRD and ICP-OES. The SEM, BET and XRD results showed that the morphology and structure of the Zr-MOF were retained after multiple transformations. The obtained UiO-66-bigua/Au nanocomposite exhibited excellent activity in the three-component reaction of aldehydes, amines and alkynes (A 3 coupling) with good to high yields of diverse propargylamines. Furthermore, the catalyst could be recovered and reused 8 times with no significant reduction in its activity. In this study, we utilized functionalized metal organic frameworks (MOFs) as a host matrix to embed gold (Au) nanoparticles.
ISSN:1144-0546
1369-9261
DOI:10.1039/d1nj02827h