2021
DOI: 10.1039/d1ta03573h
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Ultrathin 2D/2D Ti3C2Tx/semiconductor dual-functional photocatalysts for simultaneous imine production and H2 evolution

Abstract: Ultrathin 2D/2D Ti3C2Tx/semiconductors (CdS, Bi2MoO6) dual-functional photocatalysts have been constructed for the oxidative coupling of benzylamines to imines combined with H2 generation under visible light irradiation (λ ≥ 420 nm)....

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Cited by 48 publications
(31 citation statements)
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“…As shown in Fig. S16 (ESI),† an evident D 2 peak emerged, which is in harmony with other reports, 8 testifying that the hydrogen element is not derived from benzylamine but water. Furthermore, the stability of the semiconductor is vital for photocatalysis.…”
Section: Resultssupporting
confidence: 89%
See 1 more Smart Citation
“…As shown in Fig. S16 (ESI),† an evident D 2 peak emerged, which is in harmony with other reports, 8 testifying that the hydrogen element is not derived from benzylamine but water. Furthermore, the stability of the semiconductor is vital for photocatalysis.…”
Section: Resultssupporting
confidence: 89%
“…[5][6][7] For practical industrial applications, replacing the sacricial agent consumption or O 2 generation with the synthesis of value-added organic chemicals would avoid pollution/waste and create higher economic value. 8,9 Imines, as signicant industrial intermediates, have been comprehensively applied in the elds of medicine and biology and other nitrogen-containing chemicals. [10][11][12] Owing to their characteristics of being environmentally friendly and cost-effective, the photocatalytic coupling of amines to generate corresponding imines via the activation of photogenerated holes has drawn widespread attention.…”
Section: Introductionmentioning
confidence: 99%
“…The utilization of costly and toxic chemical agents not only results in the production of stoichiometric amounts of waste but also often generates overoxidized products ( Mallat and Baiker, 2004 ; Lang et al, 2014 ; Meng et al, 2018a ; Meng et al, 2018b ; Kampouri and Stylianou, 2019 ; Crombie et al, 2021 ; Shang et al, 2021 ). Particularly, the removed protons are consumed by the oxidant in these strategies resulting in the loss of a potentially interesting source of hydrogen gas ( Han et al, 2020 ; Wang et al, 2021 ). In this respect, if the hydrogen atoms released from the alcohols during oxidation can be converted into H 2 , that is, combining the dehydrogenation reaction with H 2 evolution, it would not only improve the atom economy of the reaction and the added value of the products but also provide a revolutionary technology for H 2 production.…”
Section: Introductionmentioning
confidence: 99%
“…Different from traditional photocatalytic aerobic oxidation, the oxygen-free condition effectively inhibits the consumption of the removed protons to produce water and avoids the formation of strong oxidation radicals (like superoxide radicals), which is favorable for improving the product selectivity. Theoretically, the anaerobic dehydrogenation coupled to H 2 evolution is initiated by the oxidation half-reaction to remove protons, which is considered to be a rate-limiting step ( Liu et al, 2018b ; Wang et al, 2021 ). As such, to obtain high catalytic efficiency, the efficient separation and migration of holes, that is, the exploration of advanced photocatalytic materials with high hole mobility and long carrier lifetime, to oxidize the organic substrates, is essential.…”
Section: Introductionmentioning
confidence: 99%
“…Introducing cocatalysts into photocatalysts is one of the most effective ways to promote electron dynamics and optimize surface reaction sites. [17][18][19] Despite the fact that noble metals (such as Pt, 20 Ru 21 ) cocatalysts vastly promote photocatalytic performance, the high price and scarcity restrict their wide application. [22][23][24] Therefore, it is an urgent requirement to design and fabricate noble-metal-free, multifunctional photoconversion systems.…”
Section: Introductionmentioning
confidence: 99%