Themed collection Photocatalysis

Visible light photoredox catalysis has exploded into the consciousness of the synthetic chemist. We critically review Earth-abundant metal complexes photocatalysts including Cu(I), Zn(II), Ni(0), V(V), Zr(IV), W(0), W(VI), Mo(0), Cr(III), Co(III) and Fe(II).

This review gives a comprehensive retrospection on the preparation and photocatalytic applications of yolk–shell nanostructures with additional focus on the realization of interfacial charge dynamics.

Incorporating photocatalytic nanoparticles with biochar templates can produce biochar-supported photocatalysts (BSPs) and combine the advantages of biochar with catalytic nanoparticles.

In recent years, photoredox catalysis using eosin Y has come to the fore front in organic chemistry as a powerful strategy for the activation of small molecules.

This review outlines the recent progress on designing the surface and interface of cocatalysts to create highly efficient photocatalysts for water splitting and CO₂ reduction.

Pictorial representation of all possible dye degradation reaction in UV light initiated indirect dye degradation mechanism. This mechanism is practically more important over visible light initiated direct mechanism.

A new photochemical route is disclosed in the preparation of a wide range of benzimidazoles in air under the illumination of an HP mercury lamp in the absence of any oxidizing species catalyzed by heterogenized W–ZnO@NH₂–CBB.

The effectual utilization of heterogeneous catalysts from nano sources through chemical moderation for the α-aminomethylcarboxylation of alkenes with carbon dioxide and amines is an attractive area to study.

An effective method to reduce the recombination rate of photogenerated electron–hole pairs was developed by the construction of heterojunctions with rationally designed photocatalysts having a matched band structure.

Despite implementing several methodologies including a combination of physical, chemical and biological techniques, aquatic and microbial pollution remains a challenge to this day.

Synergy effect between photocatalysis and H₂O₂-mediated heterogeneous photo-Fenton catalysis on highly robust Ti-substituted La_1−xTi_xFeO₃ perovskites led to high performances under UV-A light in water treatment.

Extensive composition engineering research has been conducted on bandgap tunability, but the combination of two mechanisms for better photon harvesting over a wide range has rarely happened; this is of great importance for improving photocatalytic efficiency with sunlight.

We have constructed a cost-effective CsPbBr₃@TiO-CN composite for photocatalytic CO₂ reduction with water as the electron source.

Improving the efficiency of charge separation is an important aspect in photocatalysis.

The use of dyes to evaluate visible-light photocatalysts requires a proper determination of the contribution from the competing processes: adsorption, sensitization, photobleaching and degradation.

By virtue of the systematic effects of S-doping on CeO₂ and the ultrathin shell structure of CdS, the CeO_2−xS_x@CdS nanocomposite exhibits excellent photocatalytic activity under visible-light illumination for both H₂ evolution (rate up to 1147.2 μmol g⁻¹ h⁻¹) and RhB degradation (efficiency reached 99.8%) as compared to CeO₂, CeO_2−xS_x, and CdS.

Photocatalytic nitrogen fixation is a promising sustainable and green strategy for NH₃ synthesis.

Synthesis of a WO₃ photocatalyst with high photocatalytic activity and stability using synergetic internal Fe³⁺ doping and superficial Pt loading for ethylene degradation under visible-light irradiation.

Ti₃C₂, though one of the most extensively studied 2D MXenes, is rarely reported in dye-sensitized photocatalysis.

A CuO/TiO₂ photocatalyst was synthesized by using a hydrolysis method. In the synthesis, the Eichhornia crassipes accumulated with copper was used and combined with titanium chloride precursor.

Ultrathin graphitic carbon nitride (UGCN) nanosheets with an extended region of visible light response and enhanced surface area were constructed for a significant enhancement in photocatalysis.