Structural, Optical, and Renewable Energy-Assisted Photocatalytic Dye Degradation Studies of ZnO, CuZnO, and CoZnO Nanostructures for Wastewater Treatment oleh Awais Khalid, Pervaiz Ahmad, Roomia Memon, Lamyaa F. Gado, Mayeen Uddin Khandaker, Hanadi A. Almukhlifi, Yosra Modafer, Najma Bashir, Otman Abida, Fahdah Ayed Alshammari, Abdelmajid Timoumi