Boosting Photocatalytic Metal-Free Hydrogen Production of Viologen-Based Covalent Organic Frameworks
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Tarih
2024
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Amer Chemical Soc
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
In the pursuit of efficient and sustainable methods for photocatalytic hydrogen generation from water, covalent organic frameworks (COFs) have risen to prominence. Serving as a crucial link between organic flexibility and synthetic tunability, COFs present themselves as highly promising candidates for visible light-driven hydrogen production. Herein, we demonstrated that donor-acceptor (D-A) type viologen-derived COF containing 1,4-bismethylbenzene linker (COF-MB-TPCBP) as a noble metal-free catalyst could achieve a high hydrogen production rate of up to 4 mmol g(-1) h(-1) under visible light irradiation. Moreover, the adsorption of COF-MB-TPCBP onto the TiO2 semiconductor surface has led to an approximate 1.35-fold enhancement in efficiency value. This strategy could contribute to the development of innovative, metal-free COFs for hydrogen evolution through solar energy conversion by refining the associated structure.
Açıklama
Anahtar Kelimeler
hydrogen evolution, metal-free, photocatalysis, donor-acceptor (D-A), viologen-linkedCOFs
Kaynak
Acs Applied Engineering Materials
WoS Q Değeri
N/A
Scopus Q Değeri
Cilt
2
Sayı
5
