胺基官能团修饰的有序大孔泡沫材料对放射性废水的吸附行为
时间:2018-04-03 21:42 来源:毕业论文 作者:毕业论文 点击:次
| 摘要本课题以合成的泡沫状有序大孔二氧化硅材料（Macroporous Ordered Silica Foam， MOSF）为基质载体，设计、制备具有一定颗粒形貌、孔隙表面含有选择性吸附铀酰离子的官能团的功能化MOSF材料，用于吸附模拟放射性废水中的铀酰离子或其他重金属离子，起到减少放射性污染排放和资源回收的作用。本课题着重解决以下三个问题：①MOSF材料的形貌和孔隙结构与铀酰离子的吸附效能之间的构效关系；②胺基官能团的修饰方法及修饰率与铀酰离子的去除率之间的内在关系；③MOSF的大孔隙结构是否更有助于固液两相界面反应的传质。通过这些问题的研究，评价以泡沫状有序大孔二氧化硅材料作为吸附分离材料的基质与其他多孔材料相较而言的先进性，为解决核燃料循环各环节及核科学技术应用过程中产生的放射性废水无害化处理与处置提供理论和实验的依据。20560 关键词 MOSF 吸附效率 放射性废液 毕业论文设计说明书（论文）外文摘要 Title Adsorption of amine functional groups modified macroporous foams radioactive wastewater Abstract The subject of foamed synthetic macroporous silica materials (Macroporous Ordered Silica Foam, MOSF) as a substrate carrier is designed to prepare particles having acertain morphology, pore surface containing uranyl ion selective adsorption function of thefunctional group MOSF materials for adsorption simulated radioactive wastewater uranylions or other heavy metal ions, decrease the risk of radioactive pollution and resource recovery role. This paper focuses on solving the following three questions: ① QSARadsorption performance MOSF morphology and pore structure of the material between the uranyl ion; between ② amine functional group modification method and a modifiedrate of uranyl ion removal the intrinsic relationship; ③ MOSF large pore structure of the solid-liquid mass transfer is more conducive to a two-phase interfacial reaction. By studying these issues in order to evaluate foam Ordered mesoporous silica material as the adsorption and separation matrix material compared with other porous materials in terms of advancement, to address various aspects of the nuclear fuel cycle to producenuclear science and technology and the application process harmless radioactive wastetreatment and disposal to provide theoretical and experimental basis. Keywords MOSF Adsorption Radioactive Wastewater 目 录 1 引言 1 1.1 放射性废水简介 1 1.2 放射性废液中的铀 2 1.3 含铀废水的处理现状 4 1.4 关于吸附剂性质介绍 5 1.5 铀的测量方法简介 6 2 实验部分 6 2.1 实验材料和试剂 6 2.2 实验仪器 7 2.2.1 紫外-可见分光光度计 8 2.2.2 全温度震荡培养箱 HZQ-F100，太仓市华美生化仪器厂 9 2.3 溶液的制备 9 2.3.1铀标准储备液的制备(参照GB6768-86) 9 2.3.2偶氮胂Ⅲ显色剂的制备（参照GB6768-86） 10 2.4 计算方法 10 2.5 MOSF的合成 10 2.5.1 MOSF的合成方法 10 2.5.2 MOSF的表征 11 (责任编辑：qin) |