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首页> 外文期刊>Chemistry: A European journal >Graphene-based multifunctional iron oxide nanosheets with tunable properties
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Graphene-based multifunctional iron oxide nanosheets with tunable properties

机译：具有可调性质的石墨烯基多功能氧化铁纳米片

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摘要

We report the synthesis of graphenes with tunable properties due to the growth of needlelike iron oxide (IO) nanoparticles on their surfaces. The electrical conductivity, flexibility, and magnetic properties of graphene nanosheets (GNSs) could be tuned on demand by fine controlling both the surface coverage and the length of the IO nanoneedles. The degree of coverage of the IO nanoparticles on the surface of the GNSs made it possible to control the resulting properties of the IO/GNSs on demand. As examples of their utility, paperlike materials were generated by simple filtration, and the resulting IO/GNS nanocomposites showed extraordinary removal capacity and fast adsorption rates for AsV and CrVI ions in water. Another possible application is the preparation of multifunctional films equipped with conductivity, flexibility, and magnetic properties. The fabrication process is easy to scale up at a low cost. In addition, both the colloidal solution and film forms of the resulting IO/GNSs were effective for removal of heavy metal ions, meaning this material could be utilized for actual industrial applications.
机译：我们报告了由于针状氧化铁（IO）纳米粒子在其表面上的生长而具有可调性质的石墨烯的合成。石墨烯纳米片（GNS）的电导率，柔韧性和磁性能可通过精细控制IO纳米针的表面覆盖范围和长度来按需进行调整。 IO纳米颗粒在GNS表面上的覆盖程度使得可以根据需要控制IO / GNS的最终性能。作为其实用性的示例，纸质材料通过简单过滤即可产生，所得的IO / GNS纳米复合材料显示出非凡的去除能力和对水中AsV和CrVI离子的快速吸附速率。另一个可能的应用是制备具有导电性，柔韧性和磁性的多功能薄膜。该制造工艺易于以低成本扩大规模。此外，所得的IO / GNS的胶体溶液和薄膜形式均可有效去除重金属离子，这意味着该材料可用于实际工业应用。

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