Well-defined Co₉S₈ cages enable the separation of photoexcited charges to promote visible-light CO₂ reduction

Abstract

Exploring affordable cocatalysts with high-performance for boosting charge separation and CO2 activation is an effective strategy to reinforce CO2 photoreduction efficiency. Herein, the well-defined Co9S8 cages are exploited as a...

Hollow NiCo₂S₄ Nanospheres as a Cocatalyst to Support ZnIn₂S₄ Nanosheets for Visible-Light-Driven Hydrogen Production

“…Also, it is of great importance to design suitable architectures for hybrid photocatalysts with specified composition to advance their performance 40 . In comparison to conventional bulk materials, hollow structured materials hold intrinsic advantages for heterogeneous photocatalysis, such as shortened charge transfer distance to facilitate separation of electron-hole pairs 41,42 , profuse reactive sites on both surfaces of the shell to promote surface-dependent reactions, and strong light scattering/reflection in the cavity to strength photon utilization [43][44][45] . Meanwhile, ultrathin nanosheet structure can benefit charge carrier separation by reducing the diffusion length from bulk to surface as well as expose plentiful active sites for redox reaction 46,47 .…”

One-step construction of Y, C, and O tridoped g-C3N4 as a bifunctional photocatalyst for H2 evolution and organic pollutant degradation under visible light irradiation

“…Meanwhile, when the E g is subtracted from the VB energy levels, it is possible to calculate the PL, photocurrent, and EIS measurements were conducted to reveal the promoted separation efficiency and transfer of photoinduced charge carriers. [58][59][60][61][62] The photoluminescence emission spectra of CN had a strong emission maximum at 460 nm attributed to emissions of band edges containing pconjugated states, showing fast recombination of photoexcited carriers (Fig. 5c).…”

Metal@hollow carbon sphere nanoreactors for sustainable biomass and CO2valorization

“…ethane, methane, ethanol, methanol, formate, etc.). [241][242][243] Catalysis that mimics photosynthesis in nature typically involves the absorption of light by the photocatalyst, separation and transport of the photoelectric charge, and the reactions on the catalyst surface. 244 At present, the engineering of hollow carbon nanostructures can enhance the benets of improving photocatalytic CO 2 conversion by modulating light absorption and charge transport through microenvironmental effects, which is an important technology for photocatalytic CO 2 conversion.…”