Feasibility of using a rotating packed bed in preparing coupled ZnO/SnO2 photocatalysts

作者：Lin Chia Chang^*; Chiang Yu Ju

来源：Journal of Industrial and Engineering Chemistry, 2012, 18(4): 1233-1236.

DOI：10.1016/j.jiec.2011.11.152

• Rotating packed bed
• Photocatalysts
• ZnO/SnO2
• Decolorization

In this work, coupled ZnO/SnO2 photocatalysts were prepared in a rotating packed bed (RPB) via co-precipitation. The precursors of coupled ZnO/SnO2 photocatalysts were formed from solutions of zinc sulfate, tin tetrachloride and sodium hydroxide. The calcinations of these precursors yielded coupled ZnO/SnO2 photocatalysts. The effect of calcination temperature on the characteristics and photocatalytic activity of coupled ZnO/SnO2 photocatalysts was studied. The photocatalytic activity of coupled ZnO/SnO2 photocatalysts was evaluated using the photocatalytic decolorization of methylene blue. The experimental results reveal that coupled ZnO/SnO2 photocatalysts that were obtained by calcination at 600 degrees C for 10 h were the most efficient in decolorizing methylene blue.

• 出版日期2012-7-25
• 单位长春大学