Recent Developments in the Use of Heterogeneous Semiconductor Photocatalyst Based Materials for a Visible-Light-Induced Water-Splitting System—A Brief Review

Visible-light-driven photoelectrochemical (PEC) and photocatalytic water splitting systems featuring heterogeneous semiconductor photocatalysts (oxynitrides, oxysulfides, organophotocatalysts) signify an environmentally friendly promising approach for the manufacturing of renewable hydrogen fuel. Semiconducting electrode materials as main constituents in PEC system have substantial effects on device’s solar-to-hydrogen (STH) conversion efficiency. Given complication photocatalysis photoelectrolysis methods, it is indispensable to include different electrocatalytic advancing visible-light-driven splitting, considered a difficult challenge. Heterogeneous semiconductor-based with narrower bandgaps (2.5 1.9 eV), equivalent theoretical STH efficiencies ranging from 9.3% 20.9%, are recognized new types photoabsorbents engage photoelectrodes oxidation fascinated much consideration. Herein, we spotlight mainly heterogenous photoanode splitting. Different based emphasized groups, such oxynitrides, organic solids. Lastly, design future developments regarding oxide electrodes applications also discussed.