Photocatalysis with atomically thin sheets

Abstract

Atomically thin sheets are ideal platforms for atomic-level deciphering and mastery of electronic band structures and charge separation and transfer. In this review, we analyze the atomic-level photocatalysis occurring on atomically thin sheets.

Modulating the Plasmon-Mediated Decarboxylation Reaction on Silver Nanoparticles by Changing the Surface Adsorption of Molecular Cocatalysts of p-Hydroxythiophenol

“…Efficient N–N coupling, C–C bond cleavage, and silver oxidation have been achieved at plasmon–molecule interfaces. ,,, However, the efficiency of these plasmon-mediated chemical reactions may be further enhanced by modulating the nanostructures of plasmonic metals and molecules. A similar concept has been demonstrated in heterostructures of inorganic nanocrystals for catalysis. ,, Realizing a similar concept in plasmon–molecule hybrid nanostructures may also greatly enhance the efficiency of charge separation and thus the rate of photochemical reactions.…”

“…A similar concept has been demonstrated in heterostructures of inorganic nanocrystals for catalysis. 35,43,44 Realizing a similar concept in plasmon−molecule hybrid nanostructures may also greatly enhance the efficiency of charge separation and thus the rate of photochemical reactions.…”

Highly selective photothermal conversion of CO2 to ethylene using hierarchical boxwood ball-like Weyl semimetal WTe2 catalysts

“…Over the past several years, the conversion of CO 2 into C 2 H 4 has witnessed a spur of activity, aided by signicant advances in the understanding of mechanism and catalyst design, which resulted in the development of successful approaches, mainly photocatalysis and electrocatalysis. [4][5][6][7][8][9] However, CO 2 is a typical linear triatomic molecule with very stable properties. The bond energy of C]O is as high as 750 kJ mol −1 , and the activation energy for CO 2 (DGf°(CO 2 , g) = −394.36 kJ mol −1 ) is very high.…”

Selectively Adsorbed Mercaptoethanesulfonic Acid on Au/TiO2 Enhances the Yield and Selectivity of Photocatalytic Reduction of Carbon Dioxide

“…Many strategies, including element doping, hybridizing, and photosensitizing, have been developed to enhance the photocatalytic performance of TiO 2 by improving visible-light absorption and/or carrier separation. − Among these strategies, hybridizing TiO 2 with plasmonic metal of gold is an effective one because of the strong visible-light absorption induced by plasmonic gold nanoparticles (AuNPs). ,− Moreover, there is a mismatch between the Fermi levels of Au and TiO 2 , producing a built-in electric field at the interface. − Thus, the charge separation at the interface can be promoted, leading to a prolonging of the lifetime of hot carriers. , However, the reaction rate still needs to be improved to meet the requirements of practical applications.…”