Existence of chloride ions in high salinity wastewater accelerates the removal of micropollutants over light-driven catalysts

A controlled non-radical chlorine activation pathway on hematite photoanodes for efficient oxidative chlorination reactions

“…In the past few decades, solar-driven photo(electro)chemistry has attracted enormous attention for solar fuel production 1–4 and environmental remediation. 5–7 The photoelectrochemical (PEC) technology combines light absorption and electrochemical processes into an integrated unit through direct semiconductor/electrolyte interfaces, offering advantages over particulate photocatalytic systems with its efficient charge separation and collection, as well as easy catalyst recycling. 8,9 In recent years, PEC approaches have pointed towards a more sustainable and energy-saving alternative for redox organic transformations compared to thermal or electrochemical methods in terms of solar energy utilization.…”