普鲁士蓝类配合物中空颗粒的合成及在水处理中的应用

发布时间：2018-01-19 12:04

本文关键词： 配位复制中空颗粒普鲁士蓝类配合物水处理刻蚀　出处：《华东师范大学》2017年硕士论文　论文类型：学位论文

【摘要】：水环境的污染问题在全球都备受关注,其中以放射性元素铯离子代表的具有放射性的可溶性碱金属离子和以芳香族污染物代表的有机污染物尤其值得关注。虽然多种多孔材料已经被发现并应用在吸附处理污染物上,但是因为普鲁士蓝类配合物不仅对铯离子有选择性吸附,而且对芳香族污染物也有较强的吸附性,所以普鲁士蓝类配合物作为吸附剂具有较大潜力。普鲁士蓝类配合物的吸附能力与介观结构和吸附位点相关,传统方法合成的中空普鲁士蓝类配合物结晶度较低限制了吸附位点数量的增加。为了得到具有较多吸附位点的中空普鲁士蓝类配合物,本文首先通过配位复制的方法制备出具有规则形貌的金属氧化物@普鲁士蓝类配合物的核壳结构。接着通过温和的刻蚀方法去除核层金属氧化物,从而制备出中空结构的普鲁士蓝类配合物颗粒。本文选择氧化亚铜作为前驱体,成功合成出中空结构铜铁普鲁士蓝和中空结构铜钴普鲁士蓝,并选择中空铜铁普鲁士蓝测定铯离子吸附性能,选择中空铜钴普鲁士蓝测定亚甲基蓝吸附性能。
[Abstract]:The problem of pollution of water environment has attracted much attention all over the world. Radioactive soluble alkali metal ions represented by cesium ions and organic pollutants represented by aromatic pollutants are of particular concern. Although many porous materials have been found and used in adsorption. Handling contaminants. However, Prussian blue complexes not only selectively adsorb cesium ions, but also have strong adsorption on aromatic pollutants. Therefore, Prussian blue complexes have great potential as adsorbents. The adsorption capacity of Prussian blue complexes is related to mesoscopic structure and adsorption sites. The low crystallinity of hollow Prussian blue complexes synthesized by traditional methods limited the increase of adsorption sites. In order to obtain hollow Prussian blue complexes with more adsorption sites. In this paper, the core-shell structure of regular metal oxide @ Prussian blue complexes was prepared by coordination replication, and then the nuclear layer metal oxides were removed by mild etching. Thus the hollow structure of Prussian blue complex particles were prepared. In this paper the hollow structure copper iron Prussian blue and the hollow structure copper cobalt Prussian blue were successfully synthesized by using cuprous oxide as the precursor. The adsorption property of cesium ion was determined by hollow copper iron Prussian blue and methylene blue was determined by hollow copper cobalt Prussian blue.
【学位授予单位】：华东师范大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：X703;O641.4

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