An amorphous MoS_x modified g-C₃N₄ composite for efficient photocatalytic hydrogen evolution under visible light

Abstract

An MoSx/g-C3N4 composite photocatalyst was successfully fabricated by a sonochemical approach, where amorphous MoSx was synthesized using a hydrothermal method, and g-C3N4 nanosheets were produced using a two-step thermal polycondensation method.

Graphitic carbon nitride with thermally-induced nitrogen defects: an efficient process to enhance photocatalytic H2 production performance

“…2,[9][10][11] Nonetheless, the shortcomings, such as poor quantum conversion efficiency, high recombination of photogenerated carriers and small specic surface area, greatly limit the application of bulky g-C 3 N 4 in water splitting. 12,13 Therefore, numerous approaches, 14 including exfoliation, [15][16][17] structural modication [18][19][20] and nano/ microstructure design, [21][22][23] have been developed to enhance the photoactivity of g-C 3 N 4 . All these above-mentioned methods tune the band structure and accelerate the migration and separation of photoinduced charge carriers, however, they suffer from complicate synthesis or limited light harvesting.…”

Synthesis and Characterization of Amorphous Molybdenum Sulfide (MoSx)/CdIn2S4 Composite Photocatalyst: Co-Catalyst Using in the Hydrogen Evolution Reaction

“…Due to this, the deposition of amorphous molybdenum sulfides has proven to be a promising way to improve photocatalytic hydrogen production. MoS x not only offers electron transport channels that promote the separation of electron-hole pairs, but also act as active reaction sites [21][22][23]. MoS x is a noble-metal-free material whose hydrogen evolution activity is better than that of MoS 2 .…”

Linear-PEI-Derived Hierarchical Porous Carbon Nanonet Flakes Decorated with MoS2 as Efficient Polysulfides Stabilization Interlayers for Lithium–Sulfur Battery

“…The existence of S 2 2− ligands and S 4+ species with higher binding energy indicates that MoS 2 undergoes partial oxidation into MoS x O y at the edges and defect sites, which can improve the catalytic performance. 64,70 The XPS analysis above indicates the formation of partially oxidized MoS 2 in the CNNFs-MoS 2 sample.…”