I. Susanti, R. M. Iqbal, Rahadian Abdul Rachman, Tri Agusta Pradana
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引用次数: 0
摘要
亚甲基蓝是目前工业上应用最广泛的染料，但它很难被微生物降解。本研究旨在通过动力学研究来考察TiO2/Zeolite-NaY和TiO2- n /Zeolite-NaY材料的光催化活性和接触时间对亚甲基蓝光催化降解速率的影响。采用先进氧化法(AOP)降解亚甲基蓝。AOP是一种利用TiO2等半导体材料或TiO2改性催化剂使TiO2/Zeolite-NaY和TiO2- n /Zeolite-NaY的降解过程。分别在紫外光下测试了TiO2/Zeolite-NaY和TiO2- n /Zeolite-NaY催化剂对亚甲基蓝的降解效果，降解时间分别为5、20、30、40和50 min。结果表明，TiO2/Zeolite-NaY和TiO2- n /Zeolite-NaY对染料具有良好的降解活性，反应20 min和30 min后降解率分别达到99%。此外，对TiO2/Zeolite-NaY和TiO2- n /Zeolite-NaY降解亚甲基蓝的动力学研究表明，其动力学模型符合准二阶。
Photocatalytic Activity and Kinetic Study of Methylene Blue Degradation using N-Doped TiO2 with Zeolite-NaY
Methylene blue is the most widely used dye in the industry and it is difficult to be degraded by the microorganism. This research aims to investigate the photocatalytic activity and effects of contact time on the photocatalytic degradation rate of methylene blue by TiO2/Zeolite-NaY and TiO2-N/Zeolite-NaY material based on the kinetic study. The Advanced Oxidative Process (AOP) method was used to degrade methylene blue. Furthermore, the AOP is a degradation process that uses semiconductor material such as TiO2 or modification catalyst of TiO2 to be TiO2/Zeolite-NaY and TiO2-N/Zeolite-NaY. The degradation of methylene blue with catalyst TiO2/Zeolite-NaY and TiO2-N/Zeolite-NaY were tested under UV light for 5, 20, 30, 40, and 50 minutes. The result showed that TiO2/Zeolite-NaY and TiO2-N/Zeolite-NaY had an excellent activity for degrading the dye, which reached up to 99% after 20 and 30 minutes reaction, respectively. Also, a kinetic study of methylene blue degradation on TiO2/Zeolite-NaY and TiO2-N/Zeolite-NaY showed the kinetic models were according to pseudo-second-order.
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