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氧化石墨烯纳米材料的制备及其对Eu(Ⅲ)吸附性能

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张蓉, 付婧, 罗田, 刘德军. 氧化石墨烯纳米材料的制备及其对Eu(Ⅲ)吸附性能[J]. 环境化学, 2018, 37(4): 798-806. doi: 10.7524/j.issn.0254-6108.2017082911
引用本文: 张蓉, 付婧, 罗田, 刘德军. 氧化石墨烯纳米材料的制备及其对Eu(Ⅲ)吸附性能[J]. 环境化学, 2018, 37(4): 798-806. doi: 10.7524/j.issn.0254-6108.2017082911
shu
ZHANG Rong, FU Jing, LUO Tian, LIU Dejun. Synthesis of graphene oxide nanomaterials and its Eu(Ⅲ) adsorption property[J]. Environmental Chemistry, 2018, 37(4): 798-806. doi: 10.7524/j.issn.0254-6108.2017082911
Citation: ZHANG Rong, FU Jing, LUO Tian, LIU Dejun. Synthesis of graphene oxide nanomaterials and its Eu(Ⅲ) adsorption property[J]. Environmental Chemistry, 2018, 37(4): 798-806. doi: 10.7524/j.issn.0254-6108.2017082911
shu

氧化石墨烯纳米材料的制备及其对Eu(Ⅲ)吸附性能

  • 1.

    国家电投集团科学技术研究院, 北京, 102209

  • 基金项目:

    国家核电技术公司员工自主创新项目（SNP-KJ-CX-2015-28，SNP-KJ-CX-2015-25），国家核电技术公司B类科研课题（KN058-IFM-2015）和国家科技重大专项（2014ZX06004005-003）资助.

Synthesis of graphene oxide nanomaterials and its Eu(Ⅲ) adsorption property

  • 1.

    State Power Investment Corporation Central Research Institute, Beijing, 102209, China

  • Fund Project: Supported by the SNPTC EmployeeIndependent Innovation Project (SNP-KJ-CX-2015-28,SNP-KJ-CX-2015-25), SNPTC B Research Project(KN058-IFM-2015) and National Science and Technology Major Project (2014ZX06004005-003).

  • 摘要: 通过改良的Hummers法制备了氧化石墨烯纳米材料，用于水中核素的吸附.通过调节氧化剂用量，改变了氧化石墨烯的微观结构进而获得了良好的核素吸附性能.研究发现随着氧化剂用量的提高，氧化石墨烯结构的无序度逐渐增大，结构层缺陷增多，晶面间距增加，微晶尺寸减少，氧化石墨烯片层出现褶皱.静态单核素吸附实验表明，氧化石墨烯对核素有着良好的吸附效果，高氧化度的氧化石墨烯纳米材料对Eu（Ⅲ）的吸附性能良好，最大吸附容量为76.46 mg·g-1，吸附规律更接近于Langmuir模型.此外，本文还对氧化石墨烯的吸附动力学、固液比影响进行了研究.研究结果表明，氧化石墨烯在核电厂放射性废水的处理方面具有广阔的应用前景.
    Abstract: Graphene oxide nanomaterials were synthesized by a modified Hummers method and used for the adsorption of nuclide in water. Excellent adsorption performance was obtained through manipulating the microstructure of graphene oxide nanomaterials by adjusting the amount of oxidizing agent. It was found that with the increase of the oxidizing agent, the degree of disorder of the graphene oxide increased. Meanwhile, more defects in the structure layer were observed with a large interlayer spacing and reduced crystal size. Many wrinkles were also observed on the graphene oxide sheet. Static adsorption experiment with single nuclide showed that graphene oxide had high adsorption capacity for nuclide. Graphene oxide nanomaterials with high oxidation degree showed the best adsorption for Eu(Ⅲ) with maximum adsorption capacity of 76.46 mg·g-1. The adsorptive behavior conformed well with the Langmuir model. Additionally, the effects of solid-liquid ratio and adsorption kinetic on the adsorption performance were also studied. The results showed that graphene oxide may have a great potential in the treatment of radioactive waste water from nuclear power plant.
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  • 收稿日期:  2017-08-29
  • 刊出日期:  2018-04-15
张蓉, 付婧, 罗田, 刘德军. 氧化石墨烯纳米材料的制备及其对Eu(Ⅲ)吸附性能[J]. 环境化学, 2018, 37(4): 798-806. doi: 10.7524/j.issn.0254-6108.2017082911
引用本文: 张蓉, 付婧, 罗田, 刘德军. 氧化石墨烯纳米材料的制备及其对Eu(Ⅲ)吸附性能[J]. 环境化学, 2018, 37(4): 798-806. doi: 10.7524/j.issn.0254-6108.2017082911
shu
ZHANG Rong, FU Jing, LUO Tian, LIU Dejun. Synthesis of graphene oxide nanomaterials and its Eu(Ⅲ) adsorption property[J]. Environmental Chemistry, 2018, 37(4): 798-806. doi: 10.7524/j.issn.0254-6108.2017082911
Citation: ZHANG Rong, FU Jing, LUO Tian, LIU Dejun. Synthesis of graphene oxide nanomaterials and its Eu(Ⅲ) adsorption property[J]. Environmental Chemistry, 2018, 37(4): 798-806. doi: 10.7524/j.issn.0254-6108.2017082911
shu

氧化石墨烯纳米材料的制备及其对Eu(Ⅲ)吸附性能

  • 1. 国家电投集团科学技术研究院, 北京, 102209
  • 收稿日期:  2017-08-29
基金项目:

国家核电技术公司员工自主创新项目（SNP-KJ-CX-2015-28，SNP-KJ-CX-2015-25），国家核电技术公司B类科研课题（KN058-IFM-2015）和国家科技重大专项（2014ZX06004005-003）资助.

摘要: 通过改良的Hummers法制备了氧化石墨烯纳米材料，用于水中核素的吸附.通过调节氧化剂用量，改变了氧化石墨烯的微观结构进而获得了良好的核素吸附性能.研究发现随着氧化剂用量的提高，氧化石墨烯结构的无序度逐渐增大，结构层缺陷增多，晶面间距增加，微晶尺寸减少，氧化石墨烯片层出现褶皱.静态单核素吸附实验表明，氧化石墨烯对核素有着良好的吸附效果，高氧化度的氧化石墨烯纳米材料对Eu（Ⅲ）的吸附性能良好，最大吸附容量为76.46 mg·g-1，吸附规律更接近于Langmuir模型.此外，本文还对氧化石墨烯的吸附动力学、固液比影响进行了研究.研究结果表明，氧化石墨烯在核电厂放射性废水的处理方面具有广阔的应用前景.

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