Enhanced Interfacial Charge Transfer and Separation Rate based on Sub 10 nm MoS₂ Nanoflakes In Situ Grown on Graphitic‐C₃N₄

Abstract

Herein, sub 10 nm MoS2 nanoflakes are successfully in situ grown on graphitic‐carbon‐nitride (MoS2/g‐C3N4) through a hydrothermal strategy. The scanning electron microscopy result indicates that the thickness of the MoS2 nanoflakes is less than 10 nm, which can boost the transport rate of the photoproduced charge during the photodegradation process. Transmission electron microscopy result clearly shows that an excellent interfacial heterojunction is formed between g‐C3N4 and MoS2, which will significantly improve the stability of catalysts. Particularly, the optimal 8% MoS2/g‐C3N4 product displays significantly enhance catalytic performance and excellent long‐term photodurability. These superior photocatalytic properties are attributed to the excellent interfacial heterostructure between MoS2 and g‐C3N4, which extends the visible light absorption range, suppresses the recombination, and improves the transfer rate of photoproduced charge.

CuS Nanosheets Decorated with CoS2 Nanoparticles as an Efficient Electrocatalyst for Enhanced Hydrogen Evolution at All pH Values

“…A stable heterostructure significant enhances the structural stability of catalysts during water splitting. 37,38 39,40 As shown in Figure 2d, Cu 2p 1/2 and Cu 2p 3/2 peaks were observed at 952.23 and 932.48 eV, respectively. 41 As shown in Figure 2e, Co 2p peaks appeared at 780.58 and 798.08 eV, along with two small satellite peaks at 786.39 and 802.93 eV, which are assigned to Co 2p 3/2 and Co 2p 1/2 , respectively.…”

Interfacial Microenvironment Modulation Enhancing Catalytic Kinetics of Binary Metal Sulfides Heterostructures for Advanced Water Splitting Electrocatalysts

“…Of them, MoS 2 has been widely studied for water splitting due to its unique morphology, excellent conductivity, and suitable band gap. [ 18,19 ] Unfortunately, the extensive application of the MoS 2 ‐based electrocatalysts is hampered by the sluggish kinetics. Particularly, the overall water splitting performance of the MoS 2 ‐based catalysts in the alkaline media is not satisfactory.…”

pH-controlled mechanism of photocatalytic RhB degradation over g-C3N4 under sunlight irradiation

“…All degradation mechanisms of RhB were impacted by numerous conditions, such as the redox ability of photogenerated carriers, the hydrion concentration and the kinds and content of oxidizing species [23]. The formation of active oxidation radicals and species in solution was influenced by the energy band position of photocatalysts and hydrion concentration [29,30]. Therefore, it is still urgently required to study the effect of the hydrion in solution on the interaction of the dye and the semiconductor and the formation of reactive oxidation species and the intermediates in RhB degradation.…”