Najib Nafis, Hilda Sartika, and Mutia Rahmi. “Photocatalytic Degradation of Congo Red With Sol-Gel Immobilized TiO₂ Thin Layers on the Inner Surface of a Glass Tube Column”. Chemistry Journal (CJ) 1, no. 1 (June 30, 2024): 01–25. Accessed February 19, 2026. https://heijournal.id/index.php/cj/article/view/29.