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Recoverable and Reu...
Recoverable and Reusable Polymer Microbead-Supported Metal Nanocatalysts for Redox Chemical Transformations
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- Fernandes, Arthur B. (författare)
- Univ Sao Paulo, Inst Quim, Dept Quim Fundamental, BR-05508000 Sao Paulo, SP, Brazil
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- Pavliuk, Mariia V. (författare)
- Uppsala universitet,Fysikalisk kemi
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- Paun, Cristina (författare)
- Uppsala universitet,Fysikalisk kemi
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- Carvalho, Alexandrina C. (författare)
- Univ Sao Paulo, Inst Quim, Dept Quim Fundamental, BR-05508000 Sao Paulo, SP, Brazil
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- Nomura, Cassiana S. (författare)
- Univ Sao Paulo, Inst Quim, Dept Quim Fundamental, BR-05508000 Sao Paulo, SP, Brazil
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- Lewin, Erik, Dr. 1979- (författare)
- Uppsala universitet,Oorganisk kemi
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- Lindblad, Rebecka, 1984- (författare)
- Uppsala universitet,Oorganisk kemi
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- Camargo, Pedro H. C. (författare)
- Univ Sao Paulo, Inst Quim, Dept Quim Fundamental, BR-05508000 Sao Paulo, SP, Brazil;Univ Helsinki, Dept Chem, FI-00014 Helsinki, Finland
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- Sá, Jacinto (författare)
- Uppsala universitet,Fysikalisk kemi,Polish Acad Sci, Inst Phys Chem, PL-01224 Warsaw, Poland
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- Bastos, Erick L. (författare)
- Univ Sao Paulo, Inst Quim, Dept Quim Fundamental, BR-05508000 Sao Paulo, SP, Brazil
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(creator_code:org_t)
- 2020-02-03
- 2020
- Engelska.
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Ingår i: ACS APPLIED NANO MATERIALS. - : AMER CHEMICAL SOC. - 2574-0970. ; 3:2, s. 1722-1730
- Relaterad länk:
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https://helda.helsin...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Metal nanoparticles have been widely exploited in catalysis, but their full impact on the environment and human health is still under debate. Here we describe the one-step fabrication of recoverable and reusable polymer microbead-supported metal and metal oxide nanocatalysts for application in batch reactions and flow systems. Au, Ag, and Fe3O4 nanoparticles were prepared directly at the surface of commercial benzylamine-coated spherical polymer beads in water by using low-energy microwave radiation for 5 min. The functionalization of microbead surface with betalamic acid, an antioxidant from plant origin, before irradiation changes the morphology and catalytic properties of the grafted nanoparticles. No leaching of the active phase was observed during the application of these effective and ready-to-use nanocatalysts on the reduction of 4-nitrophenol and oxidation of dihydrorhodamine 123. The supported nanocatalysts were recovered by filtration and/or magnetic separation and reused up to three times without significant drop in catalytic performance. These results can stimulate the controlled and facile synthesis of recoverable microbead-supported magnetic and nonmagnetic nanocatalysts that can be applied under myriad reaction conditions and reused multiple times.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- polymer-supported nanoparticles
- ion-exchange resin
- nanocatalyst
- continuous flow reaction
- sustainable chemistry
- betalain
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Fernandes, Arthu ...
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Pavliuk, Mariia ...
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Paun, Cristina
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Carvalho, Alexan ...
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Nomura, Cassiana ...
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Lewin, Erik, Dr. ...
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visa fler...
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Lindblad, Rebeck ...
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Camargo, Pedro H ...
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Sá, Jacinto
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Bastos, Erick L.
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- NATURVETENSKAP
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ACS APPLIED NANO ...
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Uppsala universitet