Photocatalytic Reduction of Chromium (VI) in a Typical Hides and Skin Industrial Wastewatwer using Zno/γ-Al2o3 Photocatalyst under Visible LIGHT. IJERAT [Internet]. 2018 Sep. 5 [cited 2024 May 4];4(9):75-86. Available from: https://ijerat.com/index.php/ijerat/article/view/399