Tuning interfacial charge transport Ti-O-Sn bonds for efficient CO conversion.

Here, the clever design of forming an ohmic contact between SnS and MXene can regulate interfacial electron transport through Ti-O-Sn chemical bonds. This fast directional charge transport kinetics is attributed to the built-in electric field formed by the ohmic contact. As expected, the photoreduction CO activity of the optimized SSTC-5 catalyst is 10.

Elucidating protonation pathways in CO photoreduction using the kinetic isotope effect.

The surge in anthropogenic CO emissions from fossil fuel dependence demands innovative solutions, such as artificial photosynthesis, to convert CO into value-added products. Unraveling the CO photoreduction mechanism at the molecular level is vital for developing high-performance photocatalysts. Here we show kinetic isotope effect evidence for the contested protonation pathway for CO photoreduction on TiO nanoparticles, which challenges the long-held assumption of electron-initiated activation.

Boosting mineralized organic pollutants by using a sulfur-vacancy CdS photocatalyst.

Photocatalytic mineralization of organic pollutions and simultaneously converting CO to CO (tetracycline → CO → CO) represents a fascinating way to solve the environmental and energy crisis. This work demonstrates the excellent mineralization and CO reduction performance of S-vacancy CdS and reveals the high efficiency of the carbon self-recycling two-in-one photocatalytic system.

Water molecule switching heterogeneous proton-coupled electron transfer pathway.

Figuring out the specific pathway of semiconductor-mediated proton-coupled electron transfer (PCET) driven by light is essential to solar energy conversion systems. In this work, we reveal that the amount of adsorbed water molecules determines the photo-induced PCET pathway on the TiO surface through systematic kinetic solvent isotope effect (KSIE) experiments. At low water content (<1.

Fabricating acid-sensitive controlled PAA@Ag/AgCl/CN photocatalyst with reversible photocatalytic activity transformation.

Achieving the intelligent controllability of the photocatalyst to the surrounding environment is a very meaningful work. Here, the polyacrylic acid (PAA) modified Ag/AgCl-40/CN composite was constructed to achieve an intelligent response of pH value. PAA exhibits hydrophilic properties at high pH value, increasing the adsorption capacity to tetracycline (TC) molecules.