COPPER AND SULFUR CO-DOPED ZNO NANOPARTICLES FOR EFFICIENT SOLAR PHOTOCATALYTIC DEGRADATION OF METHYL ORANGE. qjoest [Internet]. 2025 Sep. 29 [cited 2026 Apr. 16];6(3):23-34. Available from: https://www.qjoest.com/index.php/qjoest/article/view/236