Bifunctional thioacetamide-mediated synthesis of few-layered MoOS_x nanosheet-modified CdS hollow spheres for efficient photocatalytic H₂ production

Abstract

Constructing efficient cocatalyst-modified hollow-structured photocatalysts holds great potential in the photocatalytic H2 evolution field. Regrettably, it still remains a formidable challenge to develop cost-effective cocatalysts and explore simple synthetic methods...

Core–Shell Structured Fe3O4@CuS for Effective Gold Capture and Recovery

“…The high-resolution O 1s peaks were also evaluated and compared, with the results shown in Figure S4b. The O 1s peaks were deconvoluted into three components: M–O (M represents metal) at 530.0 eV, O–S at 531.4 eV, and O–H at 532.6 eV. , After the gold adsorption, the proportion of the O–S bond decreased as a result of the chemical reaction between the adsorbent and gold.…”

Accurate modulation of NiS cocatalysts on the photoelectron transfer sites of BiVO4 for photocatalytic H2O2 generation

“…Nickel sulfide (NiS), as one of transitional metal sulfides, is extensively used as typical non-precious metal cocatalysts to effectively improve the photocatalytic performance of photocatalysts owing to its exceptional features (such as the metalloid electronic structure for interfacial charge transfer and abundant active sites for surface catalytic reaction). 17–19 According to the very recent report of Gao et al , the S-rich NiS 1+ x cocatalyst was fabricated to simultaneously increase the interfacial active sites number and enhance the adsorption strength of the surface reactant, achieving a boosted photocatalytic H 2 -evolution activity for TiO 2 . 18 Moreover, Li et al synthesized NiS-modified heterojunction photocatalysts to remarkably promote the water-splitting performance, in which the NiS cocatalyst significantly accelerates the separation of electron–hole pairs and simultaneously promotes the surface catalytic reaction of the host photocatalyst.…”

Hierarchical hollow TiO2/In2S3 heterojunction photocatalyst decorated with spatially separated dual co-catalysts for enhanced photocatalytic H2 evolution

“…To compensate for the inadequate proffer of charge separation at the heterojunction interface and improve the sluggish surface reaction dynamics, the co-catalyst modification has been validated to effectively improve the photocatalytic activity by facilitating charge transport and decreasing the surface activation energy. [19][20][21][22] Compared with the loading of a single co-catalyst, dual co-catalyst loading with different functions provides rich active centers and migration channels for both electrons and holes, thus achieving increased charge separation and outstanding photocatalytic performance. [23][24][25][26] He et al reported the CdS nanorods decorated with both reduction co-catalyst Ag 2 S and oxidation co-catalyst NiS for drastically elevated hydrogen production performance.…”