Construction of NdFeO3 nanoparticles on reduced graphene oxide for an enhanced visible light assisted-Fenton degradation of organic pollutant in oily wastewater

N. Phan, N. Chu
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Abstract

In this study, reduced graphene oxide (rGO) incorporated on NdFeO3  (NFO/rGO) nanocomposite was successfully synthesized by using a facile hydrothermal method for photo-Fenton degradation of phenol in oily wastewater. The structural, elemental, morphological, optical property, and photo-Fenton performance of NFO/rGO nanocomposite were evaluated. From the characterizations, the prepared NFO/rGO nanocomposite showed a heterostructure between reduced graphene oxide (rGO) and NdFeO3. In addition, the prepared NFO/rGO photocatalyst has efficient charge separation compared to that of pure NFO. The photo-Fenton catalytic activity of the NFO/rGO photocatalyst was investigated by phenol degradation under visible light irradiation, with a maximum removal efficiency of 94.3 % after 90 min. In contrast to pure NFO, the introduction of rGO could suggestively enhance the photo-Fenton catalytic activity by increasing the specific surface area and narrow band gap energy. The possible reaction mechanism was also discussed.
在还原氧化石墨烯上构建NdFeO3纳米颗粒以增强可见光辅助fenton降解含油废水中的有机污染物
在本研究中,采用水热法成功合成了NdFeO3 (NFO/rGO)纳米复合材料上的还原性氧化石墨烯(rGO),用于光- fenton降解含油废水中的苯酚。评价了NFO/rGO纳米复合材料的结构、元素、形态、光学性能和光fenton性能。从表征来看,所制备的NFO/rGO纳米复合材料呈现出介于还原氧化石墨烯(rGO)和NdFeO3之间的异质结构。此外,与纯NFO相比,制备的NFO/rGO光催化剂具有高效的电荷分离。通过可见光下苯酚降解研究了NFO/rGO光催化剂的光- fenton催化活性,90 min后最大去除率为94.3%。与纯NFO相比,rGO的引入可以通过增加比表面积和窄带隙能来增强光- fenton催化活性。并对可能的反应机理进行了讨论。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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