Anisotropic heteronanocrystals of Cu2O–2D MoS2 for efficient visible light driven photocatalysis

An overview of co‐catalysts on metal oxides for photocatalytic water splitting

“…During photocatalysis, the strong interaction of sulfur atoms from MoS 2 exposes the H + ions in the solution, which are then reduced to form H 2. 73 Yu et al decorated Cu 2 O‐2D MoS 2 heteronanocrystals (HNCs) where Cu 2 O cube and Cu 2 O octa were directly grown on chemically exfoliated MoS 2 (ce‐MoS 2 ) 74 . On the basis of the band structure of Cu 2 O‐MoS 2 HNCs in Figure 4A, the photo‐induced electrons of Cu 2 O NCs with high negative potential in the CB instinctively move to the CB of ce‐MoS 2 sheets under irradiation (Process 1).…”

“…The PL spectrum showed the high intimate contact between Cu 2 O cube and MoS 2 sheets (Figure 4C) that promoted the activity of photocatalytic H 2 generation under visible light irradiation. Moreover, Cu 2 O cube ‐MoS 2 HNCs had an effective charge transfer, improved reduction process, and the desirable {100} facets of Cu 2 O exhibiting superior photocatalytic activities 74 . MoS 2 also can be decorated on Bi 2 O 3 to improve H 2 generation due to the creation of a heterojunction between these compounds that acts as a channel and stimulates charge carrier migration, resulting in a low recombination rate 75 …”

A review of the preparation and photocatalytic hydrogen evolution of core–shell Cu2O composites

“…Since the end of the industrial revolution in the 1940s, the global demand for fossil fuels has continued to increase. 1–3 The use of petroleum, coal and other raw materials has plunged some countries into energy crisis. Moreover, in the process of combustion and emission of such fuels, gas pollutants will be produced, which not only affects the environment, but also causes immeasurable damage to human health.…”

Hydrothermal Synthesis of MoS2/rGO Heterostructures for Photocatalytic Degradation of Rhodamine B under Visible Light

“…Nevertheless, the high rate of recombination of photoinduced charge carriers in single-phase MoS 2 normally prohibits its photocatalytic performance. Therefore, the integration of two or more photocatalysts to form a composite has been favorably considered [11][12][13][14][15][16][17][18]. One of the most successful strategies in coupling materials toward a better photocatalytic performance is grafting with a highly electronic conductive counterpart such as carbonbased materials.…”