Green-synthesized ZnO-TiO₂ heterojunction using Zygophyllum fabago extract for visible-light-driven photocatalytic degradation of Congo Red dye
This study demonstrates that a green-synthesized ZnO-TiO₂ heterojunction using *Zygophyllum fabago* extract serves as an efficient, stable, and recyclable visible-light photocatalyst for the degradation of Congo Red dye via a pseudo-first-order mechanism driven primarily by hydroxyl radicals.