R. M. Iqbal, I. Susanti, Rahadian Abdul Rachman, Tri Agusta Pradana, E. P. Toepak
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引用次数: 2
摘要
染料是纺织工业的重要原料。著名的纺织品染色染料是亚甲基蓝。当由微生物自然进行亚甲基蓝降解时，降解是困难的。利用半导体材料TiO2及其改性的先进氧化工艺是一种很有前途的降解亚甲基蓝的方法。TiO2的改性催化剂有TiO2- n、TiO2/沸石- nay和TiO2- n /沸石- nay。这些材料是通过将TiO2和尿素混合，然后将混合物浸渍到沸石- nay作为载体材料合成的。对材料进行了合成，并用XRD和FTIR对其进行了表征。在紫外光下测试合成材料对亚甲蓝的降解时间，分别为5、20、30、40和50分钟。结果表明:TiO2 - n /沸石- nay和TiO2/沸石- y的衍射图与TiO2和沸石- nay具有相似的特异峰;结果表明，浸渍工艺是成功的。TiO2/沸石- nay和TiO2- n /沸石- nay对亚甲基蓝的降解也表现出优异的活性，反应3小时降解率可达99%。
Synthesis, Characterization, and Photocatalytic Activity of N-Doped TiO2/Zeolite-NaY for Methylene Blue Removal
Dye is an important compound in textile industry. The famous dye for coloring of textile is methylene blue. Methylene blue degradation has been difficult when carried out naturally by microorganisms. The advanced oxidative process is a promising method to degrade methylene blue using semiconductor material TiO2 and its modification. The modification catalyst of TiO2 such as TiO2-N, TiO2/zeolite-NaY and TiO2-N/zeolite-NaY. These materials were synthesized by mixing TiO2 and urea, then followed by impregnation of the mixture to zeolite-NaY as support material. The materials have been synthesized then characterized by XRD, and FTIR. Degradation of methylene blue on the synthesized materials was tested under UV light for 5, 20, 30, 40, and 50 minutes. The results showed that the diffractogram of TiO-N/zeolite-NaY and TiO2/zeolite-Y has a similar spesific peak with TiO2 and zeolite-NaY. It indicates that the impregnation process was sucessfully. TiO2/zeolite-NaY and TiO2-N/zeolite-NaY also showed the excellent activity for degrading methylene blue, which reached up to 99% for 3 hours of reaction.
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