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首页> 外文期刊>Journal of Materials Engineering and Performance >High Catalytic Activity of Phenol Photodegradation from Aqueous Solution with Novel Fe-Fe3O4-GO Nanocomposite
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High Catalytic Activity of Phenol Photodegradation from Aqueous Solution with Novel Fe-Fe3O4-GO Nanocomposite

机译：用新型Fe-Fe3O4-go纳米复合材料从水溶液中酚光降解的高催化活性

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摘要

The nano-Fe-Fe3O4-graphene oxide (GO) composite was successfully synthesized by the precipitation method and followed by chemical reduction using FeCl3 as iron sources and NaBH4 as reducing agent. The sample was characterized by XRD, FTIR, TEM, BET, XPS, and VMS. From XRD results, it reveals the formation of both zero valent iron (Fe) and Fe3O4 particles on GO surface. From TEM images, it showed that both Fe3O4-GO and Fe-Fe3O4-GO had a small particle size of 10-20 nm. The as-prepared Fe3O4-GO and Fe-Fe3O4-GO nanocomposites were tested in the photocatalytic degradation of phenol, which exhibited excellent catalytic activity. After 90 min of reaction under the simulated sunlight irradiation, the conversion reached the value of 87% for Fe-Fe3O4-GO and 75% for Fe3O4-GO composite, respectively. The catalyst also showed the high stability. Thus, after three cycles, the conversion of 84% still remained. The high photocatalytic activity of Fe-Fe3O4-GO composite was rationalized by synergistic effect of Fe degrees and Fe2+.
机译：通过沉淀法成功地合成纳米-FE-Fe 3 O 4-石墨烯氧化物（GO）复合材料，然后使用FECL3作为铁源和NaBH 4作为还原剂的化学还原。样品的特征在于XRD，FTIR，TEM，BET，XPS和VM。从XRD结果中，它揭示了在表面上形成零价铁（Fe）和Fe3O4颗粒。从TEM图像，它显示FE3O4-GO和FE-FE3O4-GO粒径为10-20nm。在苯酚的光催化降解中测试了AS制备的Fe3O4-Go和Fe-Fe 3 O 4-Go纳米复合材料，其表现出优异的催化活性。在模拟阳光照射下反应90分钟后，转化率达到Fe-Fe3O4-Go-Go-Go的值87％，对于Fe3O4-Go复合材料分别为75％。催化剂还显示出高稳定性。因此，在三个循环后，仍然保持84％的转化率。 Fe-Fe3O4-Go复合材料的高光催化活性通过Fe度和Fe2 +的协同作用合理化。

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