“Visible-Light Photocatalytic Enhancement in Hydrothermally Synthesized Cd₁S₁₋ₓ Nanoparticles: Structural and Optical Characterization”. 2026. Sana’a University Journal of Applied Sciences and Technology 4 (3): 1814-24. https://doi.org/10.59628/jast.v4i3.2464.