Recent progress on van der Waals heterojunctions applied in photocatalysis

Abstract

In recent years, heterojunction materials bonded by interlayer van der Waals force have grown into a very large family. These van der Waals heterostructures have promising applications in photocatalysis due...

Recent Developments in Titanium Carbide (Ti3C2)-Based Layered Double Hydroxide (LDH) Nanocomposites for Energy Storage and Conversion Applications: A Minireview and Perspectives

“…LDHs with tunable composition, large surface area, and high quantity of available surface-active sites have received huge interest for photocatalytic CO 2 reduction . Although LDH as a layered semiconductor has the ability to enhance the photocatalytic performance, it endures from weak charge mobility and quick charge recombination, resulting in a low photocatalytic activity toward CO 2 reduction. , To overcome these problems, the formation of LDH/TiC MXene could proficiently amalgamate multifunctionalities, recompense deficiencies, and bestow new properties, which make efficient charge carrier separation, resulting in stability and higher photocatalytic performance. Particularly, coupling TiC with LDH materials can generate heterojunctions, remarkably improving the migration and separation of charge carriers.…”

Recent progress of cocatalysts loaded on carbon nitride for selective photoreduction of CO2to CH4

“…With the rapid development of society, the unrestricted exploitation and consumption of fossil fuels have dramatically increased the emission of CO 2 , which has been gradually disrupting the balance of the carbon cycle in nature. 1,2 Therefore, it is imperative to develop advanced technologies to reduce the atmospheric CO 2 concentration. So far, many approaches for converting CO 2 into usable chemicals and fuels have been explored, including photocatalytic, biochemical, electrochemical, plasma chemical and thermochemical processes.…”

InN/XS2 (X = Zr, Hf) vdW heterojunctions: promising Z-scheme systems with high hydrogen evolution activity for photocatalytic water splitting

“…Type-II and direct Z-scheme heterojunctions, possessing a staggered band alignment, which can spatially separate electrons and holes and enhance the carrier lifetime, are widely used in the field of photocatalysis. [6][7][8][9] In particular, the direct Z-scheme heterojunction, inspired by natural photosynthesis in green plants, has a different charge carrier migration mechanism compared with the type-II heterojunction. Its narrow band gap and appropriate intrinsic electric field can recombine rapidly photo-induced electrons and holes between layers, facilitating charge-carrier migration along the Z-path.…”