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首页> 外文期刊>Journal of Solid State Chemistry >Fe_(2.25)W_(0.75)O_4/reduced graphene oxide nanocomposites for novel bifunctional photocatalyst: One-pot synthesis, magnetically recyclable and enhanced photocatalytic property
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Fe_(2.25)W_(0.75)O_4/reduced graphene oxide nanocomposites for novel bifunctional photocatalyst: One-pot synthesis, magnetically recyclable and enhanced photocatalytic property

机译：Fe_（2.25）W_（0.75）O_4 /新型双功能光催化剂的还原氧化石墨烯纳米复合材料：一锅法合成，可磁回收和增强的光催化性能

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摘要

Fe_(2.25)W_(0.75)O_4/reduced graphene oxide (RGO) composites were prepared for application of novel bifunctional photocatalyst via simple one-pot hydrothermal method, employing graphene oxide (GO), Na _2WO_4, FeSO_4 and sodium dodecyl benzene sulfonate (SDBS) as the precursors. Transmission electron microscope (TEM) results indicate that the well-dispersed Fe_(2.25)W_(0.75)O _4 nanoparticles were deposited on the surface of RGO sheets homogeneously. Magnetic characterization reveals that Fe_(2.25)W _(0.75)O_4 and Fe_(2.25)W_(0.75)O _4/RGO show ferromagnetic behaviors. So this novel bifunctional photocatalyst could achieve magnetic separation and collection with the aid of external magnet. The composites exhibit enhanced photocatalytic performance on degradation of methyl orange (MO) compared with pure Fe_(2.25)W _(0.75)O_4 under low-power ultraviolet light irradiation due to the introduction of RGO. Moreover, this hybrid catalyst possesses long-term excellent photocatalytic performance due to its good thermal stability. This bifunctional photocatalyst, which combines magnetic property and excellent photocatalytic activity, would be a perfect candidate in applications of catalytic elimination of environmental pollutants and other areas.
机译：采用简单的一锅水热法制备了Fe_（2.25）W_（0.75）O_4 /还原型氧化石墨烯（RGO）复合材料，用于新型双功能光催化剂的应用，采用氧化石墨烯（GO），Na_2WO_4，FeSO_4和十二烷基苯磺酸钠（ SDBS）作为先驱。透射电镜结果表明，分散良好的Fe_（2.25）W_（0.75）O_4纳米粒子均匀沉积在RGO片的表面。磁性表征表明Fe_（2.25）W_（0.75）O_4和Fe_（2.25）W_（0.75）O_4 / RGO表现出铁磁行为。因此，这种新型的双功能光催化剂可以借助外部磁体实现磁分离和收集。由于引入了RGO，与纯Fe_（2.25）W_（0.75）O_4相比，该复合材料在低功率紫外光照射下对甲基橙（MO）的降解具有增强的光催化性能。此外，这种杂化催化剂由于其良好的热稳定性而具有长期优异的光催化性能。这种具有磁性和优异的光催化活性的双功能光催化剂，将是催化消除环境污染物和其他领域的理想选择。

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