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首页> 外文期刊>Materials Science and Engineering >Fabrication of novel magnetic F-TiO_2(B)/carbon nanostructures nanocomposites as photocatalysts for malachite green degradation under visible light
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Fabrication of novel magnetic F-TiO_2(B)/carbon nanostructures nanocomposites as photocatalysts for malachite green degradation under visible light

机译：新型磁性F-TiO_2（B）/碳纳米结构纳米复合材料的制备作为光催化剂在可见光下降解孔雀石绿

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摘要

Magnetic bronze F-TiO2/carbon nanostructures nanocomposites were facilely synthesized by using TTIP (titanium tetraisopropoxide) and carbon nanostructures (Multi-walled carbon nanotube (MWCNT) or Fullerene (C-60)) as precursors via the hydrothermal process. The structure of the magnetic nanocomposites have been characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction analysis (XRD), UV-Vis diffuse reflectance spectroscopy, field emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectroscopy (EDX) and Vibrating sample magnetometer (VSM). The photocatalytic activities of magnetic catalysts were evaluated by using the malachite green (MG) as contaminant. The results reveal that the photocatalytic degradation efficiency of F-TiO2(B)/Multiwall Carbon Nanotubes (MWCNT)@Nickel ferrite (NiFe2O4) and F-TiO2(B)/Fullerene(C-60)@Nickel ferrite (NiFe2O4) for MG dye are 93% and 98% respectively, after 120 min visible irradiation. In addition, after using 4 times, the F-TiO2(B)/carbon nanostructure@NiFe2O4 nanocomposites still preserved an excellent degradation rate and indicated well reusability.
机译：磁性青铜F-TiO2 /碳纳米结构纳米复合物是通过TTIP（四异丙氧基钛）和碳纳米结构（多壁碳纳米管（MWCNT）或富勒烯（C-60））作为前驱体，通过水热过程轻松合成的。磁性纳米复合材料的结构已通过傅里叶变换红外光谱（FTIR），X射线衍射分析（XRD），UV-Vis漫反射光谱，场发射扫描电子显微镜（FESEM），能量色散X射线光谱进行了表征（EDX）和振动样品磁力计（VSM）。通过使用孔雀石绿（MG）作为污染物评估了磁性催化剂的光催化活性。结果表明，F-TiO2（B）/多壁碳纳米管（MWCNT）@镍铁氧体（NiFe2O4）和F-TiO2（B）/富勒烯（C-60）@镍铁氧体（NiFe2O4）对MG的光催化降解性能可见光照射120分钟后，染料分别为93％和98％。另外，使用4次后，F-TiO2（B）/碳纳米结构@ NiFe2O4纳米复合材料仍保持了优异的降解率，并具有良好的可重复使用性。

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