| Wu Zhenyu,Wang Zhongwen,Wang Yun.Adsorption of radionuclide thorium by graphene oxide aerogels from aqueous solution[J].Chinese Journal of Radiological Medicine and Protection,2020,40(5):397-401 |
| Adsorption of radionuclide thorium by graphene oxide aerogels from aqueous solution |
| Received:February 24, 2020 |
| DOI：10.3760/cma.j.issn.0254-5098.2020.05.012 |
| KeyWords:Graphene oxide Aerogel Thorium Adsorption |
| FundProject:江西省卫生健康委科技计划项目（20203878） |
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| Abstract:: |
| Objective To study the characteristics of thorium adsorption onto graphene oxide aerogel (GO-A). Method GO-A was prepared using hydrothermal reduction assembly method and characterized using scanning electron microscopy (SEM) and Fourier infrared spectroscopy (FT-IR) to investigate its adsorption performance, including the effects of solution pH, adsorption time, initial thorium concentration, and temperature. Results The maximum adsorption capacity of thorium onto GO-A was 85.8 mg/g under the experimental conditions of pH 3.0, GO-A 20 mg, solution volume 25 ml, and oscillation for 4 h at 25℃. Conclusions The preparation method of GO-A has a high thorium adsorption capacity owing to being simple, environmental benign, convenient for solid-liquid separation. This result will provide new method and technologies for the treatment of thorium-containing radioactive wastewater and the pre-treatment of samples for environmental monitoring. |
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