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首页> 外文期刊>Journal of inorganic and organometallic polymers and materials >Advances in Graphene-Based Magnetic and Graphene-Based/TiO_2 Nanoparticles in the Removal of Heavy Metals and Organic Pollutants from Industrial Wastewater
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Advances in Graphene-Based Magnetic and Graphene-Based/TiO_2 Nanoparticles in the Removal of Heavy Metals and Organic Pollutants from Industrial Wastewater

机译：基于石墨烯的磁性和石墨烯的/ TiO_2纳米颗粒在除去工业废水中的重金属和有机污染物中的研究进展

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摘要

In this review, various graphene-based/TiO(2)and graphene-based magnetic nanocomposites which were developed as highly efficient photocatalysts for degrading organic dyes, pharmaceuticals and efficient adsorbent materials for the adsorption of heavy metal ions were reviewed. The nanocomposites revealed the effective adsorptive potential of graphene-based magnetic materials and the efficient photocatalytic ability of graphene-based/TiO(2)nanocomposites in decontaminating industrial wastewater containing toxic heavy metals and organic pollutants. The magnetic properties of graphene-based magnetic materials facilitate easy magnetic separation after adsorption of pollutants. The efficient photocatalytic ability of TiO(2)semiconductor helps in rapid degradation of organic pollutants while graphene-based materials increase the surface area for adsorption of pollutants. Literature studies show that combinations of synthetic methods have been employed for the generation of various nanocomposite materials such as GO/TiO2, rGO/TiO2, and Fe3O4/GO, that possess photocatalytic activity and magnetic properties for the commercial removal of organic and inorganic pollutants found in water/wastewaters. The photocatalytic performance is connected to the large surface area of graphene derivatives (e.g. GO) that limit electron-hole recombination for TiO2, while the presence of magnetic nanoparticles (e.g. Fe3O4) in heavy metal adsorbent materials facilitates magnetic separation when an external magnetic field is applied.
机译：在该综述中，综述了各种基于石墨烯的/ TiO（2）和基于石墨烯的磁性纳米复合材料，其作为高效的光催化剂用于降解有机染料，药物和高效吸附材料，用于吸附重金属离子的吸附。纳米复合材料揭示了石墨烯基磁性材料的有效吸附潜力以及石墨烯类/ TiO（2）纳米复合材料在覆盖含有有毒重金属和有机污染物的工业废水中的有效光催化能力。石墨烯基磁性材料的磁性促进污染物吸附后容易磁分离。 TiO（2）半导体的有效光催化能力有助于有机污染物的快速降解，而基于石墨烯的材料增加了表面积以吸附污染物。文献研究表明，合成方法的组合已经用于产生各种纳米复合材料，例如Go / TiO2，Rgo / TiO2和Fe3O4 / Go，其具有用于商业除去有机和无机污染物的光催化活性和磁性性能在水/废水器中。光催化性能连接到石墨烯衍生物的大表面积（例如，Go），其限制TiO 2的电子空穴重组，而重金属吸附材料中的磁性纳米粒子（例如Fe3O4）的存在有助于当外部磁场是时磁分离应用。

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