MXene dots as photocatalysts for CO2 hydrogenation

Synergistic Effect of the V2CTx MXene@V2O5/TiO2 NP Composite for Stimulating Photocatalytic CO2 Reduction through Bireforming of Methanol to Produce CO and CH4

“…The results revealed that CO and CH 4 were the primary products, showcasing the efficiency of MQDs in both the production and separation of charge carriers during the photocatalytic process. This finding underscores the promising application of MXene quantum dots as effective catalysts for the conversion of carbon dioxide into valuable chemical products . In summary, due to the close interaction between the V 2 C MXene and TiO 2 , efficient charge carrier separation was achieved and the photocatalytic activity was substantially improved by the synergistic action of V 2 O 5 and V 2 C with TiO 2 .…”

“…These findings suggest that by modifying surface terminal groups, composition, and other structural elements of MXenes, it becomes feasible to create semiconducting materials endowed with notable photocatalytic activity. This research demonstrates the potential for tailoring the properties of MXenes to enhance their performance in catalytic processes, particularly in the conversion of CO 2 into valuable chemical products …”

“…This finding underscores the promising application of MXene quantum dots as effective catalysts for the conversion of carbon dioxide into valuable chemical products. 51 In summary, due to the close interaction between the V 2 C MXene and TiO 2 , efficient charge carrier separation was achieved and the photocatalytic activity was substantially improved by the synergistic action of V 2 O 5 and V 2 C with TiO 2 . With their inherent photoresponse, adaptability, and tunability, MXenes seem to be intriguing 2D materials with the potential to become extremely effective as cocatalysts and photocatalysts for energy and environmental applications.…”

“…This research demonstrates the potential for tailoring the properties of MXenes to enhance their performance in catalytic processes, particularly in the conversion of CO 2 into valuable chemical products. 51 The performance of V 2 C@V 2 O 5 /TiO 2 was further investigated using various reforming systems such as CO 2 reduction with H 2 O, H 2 , and methanol. To investigate the role of methanol as a hole scavenger, CO 2 gas was first saturated with methanol− water vapors using a 5 vol % solution of methanol in water.…”

Advances in MXene surface functionalization modification strategies for CO2 reduction

“…Layered transition metal carbides/nitrides, namely MXenes, as emerging two-dimensional nanomaterials, have a wide range of applications in electrical energy storage, 1,2 optoelectronic functional devices, 3 biomedicine, 4 photo-catalysis, 5 electrocatalysis, [6][7][8][9][10][11][12] etc., compared with graphene, MOFs, and TMDs owing to the unique nanostructures and excellent electrical properties of MXenes. [13][14][15] The structural formula of MXenes is M n+1 AX n , where M is a transition metal (e.g., Cr, Ti, V, Mn, Nb, and Mo), A is usually a III or IV main group element (e.g., Al, Ga, Si, and Ge), and X is C, N, etc.…”