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Ordered mesoporous Fe/TiO2 with light enhanced photo-Fenton activity
Chinese Journal of Catalysis ( IF 15.7 ) Pub Date : 2019-05-01 , DOI: 10.1016/s1872-2067(19)63309-7
Zhenmin Xu , Ru Zheng , Yao Chen , Jian Zhu , Zhenfeng Bian

Abstract Ordered mesoporous Fe/TiO2 was prepared by an evaporation-induced self-assembly method. The iron ions were in situ embedded in the pore wall of the TiO2 framework. The catalyst has excellent light-assisted Fenton catalytic performance under UV and visible light irradiation. X-ray diffraction and transmission electron microscopy results showed that the TiO2 samples have an ordered two-dimensional hexagonal pore structure and an anatase phase structure with high crystallinity. The ordered pore structure of the TiO2 photocatalyst with a large specific surface area is beneficial to mass transfer and light harvesting. Furthermore, iron ions can be controlled by embedding them into the TiO2 framework to prevent iron ion loss and inactivation. After five cycles, the reaction rate of the ordered mesoporous Fe/TiO2 remained unchanged, indicating that the material has stable performance and broad application prospects for the purification of environmental pollutants.

中文翻译:

具有光增强光芬顿活性的有序介孔 Fe/TiO2

摘要 采用蒸发诱导自组装方法制备了有序介孔Fe/TiO2。铁离子原位嵌入 TiO2 骨架的孔壁中。该催化剂在紫外光和可见光照射下具有优异的光辅助芬顿催化性能。X射线衍射和透射电镜结果表明,TiO2样品具有有序的二维六方孔结构和高结晶度的锐钛矿相结构。具有大比表面积的TiO2光催化剂的有序孔结构有利于传质和光收集。此外,可以通过将铁离子嵌入 TiO2 框架中来控制铁离子,以防止铁离子损失和失活。五次循环后,有序介孔Fe/TiO2的反应速率保持不变,
更新日期:2019-05-01
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