PHOTOCATALYTIC OPTIMIZATION OF MR DYE BY K-ZnO AND ZnO CATALYSTS UNDER VISIBLE IRRADIATION. FJS [Internet]. 2021 Jun. 12 [cited 2025 Sep. 11];4(4):67-76. Available from: http://www.fjsadmin.fudutsinma.edu.ng/index.php/fjs/article/view/408