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Activation of 2D co...
Activation of 2D cobalt hydroxide with 0D cobalt oxide decoration for microplastics degradation and hydrogen evolution
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- Greco, Rossella (författare)
- University of Oulu
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- Baxauli-Marin, Lucía (författare)
- University of Oulu
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- Temerov, Filipp (författare)
- University of Oulu
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- Daboczi, Matyas (författare)
- Imperial College London
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- Eslava, Salvador (författare)
- Imperial College London
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- Niu, Yuran (författare)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory
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- Zakharov, Alexei (författare)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory
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- Zhang, Meng (författare)
- East China University of Science and Technology
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- Li, Taohai (författare)
- Xiangtan University,University of Oulu
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- Cao, Wei (författare)
- University of Oulu
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(creator_code:org_t)
- 2023
- 2023
- Engelska.
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Ingår i: Chemical Engineering Journal. - 1385-8947. ; 471
- Relaterad länk:
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http://dx.doi.org/10... (free)
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The 2D semiconductors are important players in environmental and energy fields due to their unique catalytic and physical properties defined by their dimensionality. Versatile functionalities on one 2D matrix will enlarge its application scopes but require dedicated engineering paths. In this work, we present a cross-dimensional strategy by decorating 0D Co3O4 onto 2D Co(OH)2 to form a multifunctional photocatalyst. The one-pot hydrothermally synthesized Co3O4@Co(OH)2 composite is capable of degrading polystyrene microplastics with an efficiency of 40% under 0.495 W white LED illumination. In a separated experiment, H2 evolution reaction from water splitting was evaluated in absence of sacrificial agents leading to 43 μmol g−1 and to an apparent quantum efficiency of 3.48% at 420 nm. The study of the energy band diagrams by UV–Visible and ambient photoemission spectroscopy and the analysis of the radicals involved in the reaction of photocatalytic degradation allow to unveil the mechanisms for both the processes herein studied. Finally, we could confirm that the heterostructure benefits the redox potentials of 2D and 0D counterparts and facile electron transfers when crossing two different dimensions. These results provide guidelines and inspiration for cross-dimensional activations of low-dimensional materials for versatile functionalities.
Ämnesord
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Nyckelord
- Cobalt hydroxide
- Cobalt oxide
- Hydrogen evolution reaction
- Microplastic degradation
- Photocatalysis
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- ref (ämneskategori)
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Till lärosätets databas
- Av författaren/redakt...
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Greco, Rossella
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Baxauli-Marin, L ...
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Temerov, Filipp
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Daboczi, Matyas
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Eslava, Salvador
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Niu, Yuran
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visa fler...
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Zakharov, Alexei
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Zhang, Meng
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Li, Taohai
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Cao, Wei
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visa färre...
- Om ämnet
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- NATURVETENSKAP
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NATURVETENSKAP
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och Kemi
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och Materialkemi
- Artiklar i publikationen
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Chemical Enginee ...
- Av lärosätet
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Lunds universitet