多孔吸附材料抗辐射性能研究
时间:2018-07-18 15:14 来源:毕业论文 作者:毕业论文 点击:次
| 摘要随着对放射性核素吸附研究的不断深入，辐照对多孔材料本身性能的影响成为了关注热点之一。本课题以有机材料银改MIL-101及无机材料有序大孔泡沫状二氧化硅MOSF为研究对象，通过采用电子加速器kGy量级剂量辐照，及扫描电子显微镜、X-射线衍射仪、傅里叶变换红外光谱仪性能表征的方法，来研究辐照对材料吸附性能的影响。 结果表明：在经电子束照射后，银改性MIL-101的晶体结构发生了细微的变化，但在5.310°、8．610°和9．218°附近仍表现出X射线特征衍射峰，材料对碘离子吸附能力有所提高，吸附率由照射前的39.2%提高至52.14%，且吸附率与受到的辐照剂量成正比；而有序大孔泡沫状二氧化硅MOSF在物理、化学结构和铀酰离子吸附能力上并无明显差异。25830 关键词 多孔吸附材料 电子束辐照 性能表征 吸附能力 毕业论文设计说明书外文摘要 Title Porous adsorption material radiation resistance Abstract With the continuous development of the research on the adsorption of radionuclides, the effect of irradiation on the properties of the porous material becomes a hot spot.. This topic using silver organic materials changed mil-101 and inorganic material ordered macroporous foam silica MOSF as the research object, through the use of electron accelerator kGy magnitude irradiation dose and scanning electron microscopy, X-ray X-ray diffraction, Fourier transform infrared spectroscopy characterization of method, to study the effects of irradiation on the adsorption properties of the material. The results showed that in after electron beam irradiation, silver changed the crystal structure of mil-101 occurred subtle changes, but still showed a characteristic X-ray diffraction peaks either in 5.310 degrees, near the 8.610 degrees and 9.218 degrees, the material of iodine ion adsorption capacity has increased, the adsorption rate by 39.2% before irradiation provided to 52.14%, and the adsorption rate and irradiation dose proportional; and ordered macroporous foam silica MOSF in physical and chemical structure and uranyl ion adsorption capacity did not differ significantly. Keywords Porous adsorption material Electron beam irradiation Properties characterization Adsorbability 目 次 1 绪论 1 1.1 放射性废水处理研究现状 1 1.2 多孔材料辐照的介绍 1 1.3 金属有机骨架材料银改性MIL-101介绍 2 1.4 有序大孔泡沫状材料二氧化硅MOSF介绍 3 1.5 多孔材料的常见表征手段 3 1.6 研究内容及意义 4 2 有机金属骨架材料MIL-101抗辐射性能研究 5 2.1 实验试剂及仪器 5 2.2 银改性MIL-101的制备、辐照及吸附实验 5 2.3 辐照前后X射线粉末衍射（XRD）分析 8 2.4 辐照前后电子显微镜扫描（SEM)分析 9 2.5 辐照前后红外光谱分析（FT-IR）分析 10 2.6 辐照前后材料对碘吸附性能研究 11 2.7 本章小结 12 3有序大孔二氧化硅MOSF抗辐射性能研究 13 (责任编辑：qin) |