The rational design of a graphitic carbon nitride-based dual S-scheme heterojunction with energy storage ability as a day/night photocatalyst for formic acid dehydrogenation

Activation of DMSO(-d6) via heterogeneous photo-Fenton-like process with in situ production of hydroxyl radicals for the C–H (trideutero)methylation of (iso)quinoliniums

“…As mentioned already, our group used gCN/MnO/MnO(OH) as a support material for enhancing the photocatalytic activity of AgPd alloy nanoparticles in the dehydrogenation of formic acid. 17 The focus of our previous study was about the clarification of gCN/MnO/MnO(OH)/AgPd quaternary nanocomposites to understand the role of the gCN/MnO/MnO(OH) support material on the photocatalytic activity. 17 By using many advanced characterization techniques, we concluded that gCN/MnO/MnO(OH) facilitates the decomposition of in situ -generated H 2 O 2 to ˙OH radicals, which play a key role in the oxidation of formate ions to CO 2 in the formic acid dehydrogenation mechanism.…”

“…16 Last year, we demonstrated that gCN/MnO/MnO(OH)-PdAg S-scheme heterojunctions effectively convert H 2 O and O 2 to H 2 O 2 , which is decomposed to ˙OH radicals for formic acid dehydrogenation under visible light irradiation. 17 The gCN/MnO/MnO(OH)-PdAg S-scheme heterojunctions possess a high positive VB potential (+2.86 V vs. NHE) and a more negative CB potential (−1.61 V vs. NHE) than gCN. 17 Moreover, they work under different conditions and show excellent recyclability for multiple runs.…”

“…17 The gCN/MnO/MnO(OH)-PdAg S-scheme heterojunctions possess a high positive VB potential (+2.86 V vs. NHE) and a more negative CB potential (−1.61 V vs. NHE) than gCN. 17 Moreover, they work under different conditions and show excellent recyclability for multiple runs. Using many advanced characterization techniques, we concluded that gCN/MnO 2 /MnO(OH) facilitates the decomposition of hydrogen peroxide generated during the photocatalytic process to OH radicals and plays a key role in the oxidation of formate ions to CO 2 in the formic acid dehydrogenation mechanism.…”

“…Using many advanced characterization techniques, we concluded that gCN/MnO 2 /MnO(OH) facilitates the decomposition of hydrogen peroxide generated during the photocatalytic process to OH radicals and plays a key role in the oxidation of formate ions to CO 2 in the formic acid dehydrogenation mechanism. 17 In this regard, we propose that (i) gCN/MnO/MnO(OH) ternary heterojunctions (without AgPd alloy nanoparticles) can be used as a photocatalyst for the generation of ˙OH radicals from the decomposition of H 2 O 2 under visible light illumination and (ii) the resultant ˙OH radicals can be used for the activation of DMSO(-d 6 ) in the C–H (trideutero)methylation of (iso)quinoliniums.…”

Integration of plasmonic AgPd alloy nanoparticles with single-layer graphitic carbon nitride as Mott-Schottky junction toward photo-promoted H2 evolution

“…Recent reports have shown that the design and manufacture of conjugated semiconductor polymers due to their advantages such as constancy in aqueous-medium, visible light absorbency, intramolecular charge transition, the low expense is one of the effective strategies [36][37][38] . Supported semiconductors with visible light absorption can be used to modify the photocatalytic operation of heterogeneous metal based catalysts for photo-decomposition formic acid 31,32,35,39,40 . This is owing to the electronic interaction and electron handover between the metal and the semiconductor due to the Mott-Schottky effect on the surface of the metal based semiconductor interfaces 41 .…”