Single-Atom-Based Catalysts for Photocatalytic Water Splitting on TiO2 Nanostructures

H2 generation from photocatalytic water splitting is one of the most promising approaches to producing cost-effective and sustainable fuel. Nanostructured TiO2 a highly stable efficient semiconductor photocatalyst for this purpose. The main drawback as sluggish charge transfer on surface that can be tackled great extent by use platinum group materials (PGM) co-catalysts. However, scarcity high cost PGMs issues prevent widespread TiO2/PGM systems generation. Single-atom catalysts which are currently frontline in catalysis field favorable path overcome further advance noble metals. More importantly, single-atom (SA) simultaneously have advantage homogenous heterogeneous catalysts. This mini-review specifically focuses single atom decoration nanostructures splitting. latest progress fabrication, characterization, application single-atoms reviewed.