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Interfacial Ti-S Bo...
Interfacial Ti-S Bond Modulated S-Scheme MOF/Covalent Triazine Framework Nanosheet Heterojunctions for Photocatalytic C-H Functionalization
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Gao, Zhu (författare)
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Jian, Yi (författare)
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Yang, Song (författare)
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Xie, Qiujian (författare)
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- Mcfadzean, Charles Joseph Ross (författare)
- Stockholms universitet,Institutionen för material- och miljökemi (MMK)
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Wei, Baosheng (författare)
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Tang, Juntao (författare)
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- Yuan, Jiayin, 1979- (författare)
- Stockholms universitet,Institutionen för material- och miljökemi (MMK)
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Pan, Chunyue (författare)
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Yu, Guipeng (författare)
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(creator_code:org_t)
- 2023
- 2023
- Engelska.
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Ingår i: Angewandte Chemie International Edition. - 1433-7851 .- 1521-3773. ; 62:27
- Relaterad länk:
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https://doi.org/10.1...
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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
- Constructing photocatalyst systems to functionalize the inert C−H bonds has attracted extensive research interest. However, purposeful modulation of interfacial charge transfer in heterostructures remains a challenge, as it usually suffers from sluggish kinetics. Reported herein is an easy strategy to construct the heteroatom-induced interface for developing the titanium-organic frameworks (MOF-902) @ thiophene-based covalent triazine frameworks (CTF-Th) nanosheets S-scheme heterojunctions with controllable oxygen vacancies (OVs). Specifically, Ti atoms were first anchored onto the heteroatom site of CTF-Th nanosheets, and then grown into MOF-902 via an interfacial Ti−S linkage, generating OVs. Using in situ X-ray photoelectron spectroscopy (XPS), extended X-ray absorption fine structure (EXAFS) spectroscopy and density functional theory (DFT) calculations, the enhanced interfacial charge separation and transfer induced by moderate OVs in the pre-designed S-scheme nanosheets was validated. The heterostructures exhibited an improved efficiency in photocatalytic C3-acylation of indoles under mild conditions with a yield 8.2 times larger than pristine CTF-Th or MOF-902 and enabled an extended scope of substrates (15 examples). This performance is superior to state-of-the-art photocatalyst and can be retained, without significant loss, after 12 consecutive cycles.
Ämnesord
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Nyckelord
- Acylation
- Covalent Triazine Frameworks
- Heterojunction
- MOFs
- Photocatalysis
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Till lärosätets databas
- Av författaren/redakt...
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Gao, Zhu
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Jian, Yi
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Yang, Song
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Xie, Qiujian
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Mcfadzean, Charl ...
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Wei, Baosheng
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visa fler...
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Tang, Juntao
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Yuan, Jiayin, 19 ...
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Pan, Chunyue
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Yu, Guipeng
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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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Angewandte Chemi ...
- Av lärosätet
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Stockholms universitet