Colorless Magnetic Colloidal Particles Based on an Amorphous Metal‐Organic Framework Using Holmium as the Metal Species.
Colorless Magnetic Colloidal Particles Based on an Amorphous Metal‐Organic Framework Using Holmium as the Metal Species.
复制标题
基于使用钬作为金属物质的非晶金属有机骨架的无色磁性胶体颗粒。
DOI：
10.1002/cnma.202200078
复制
发表时间：
2022
期刊：
影响因子：
3.8
通讯作者：
Kohri Michinari
中科院分区：
文献类型：
--
作者：
Fujita Yuta;Kohaku Kotona;Komiyama Nao;Ujiie Kazuya;Masu Hyuma;Kojima Takashi;Wadati Hiroki;Kanoh Hirofumi;Kishikawa Keiki;Kohri Michinari
Ho(Ho)是一种具有高磁矩的稀土元素。在这里，我们以间苯二甲酸为有机连接物，以Ho为金属物种，合成了一种没有长程周期有序性但保留了金属有机骨架基本成分的无定形金属-有机骨架。得到的球形HO-MOF粒子在溶剂中分散良好，并在磁体作用下表现出优异的磁性。由于Ho几乎没有着色性，Ho-MOF颗粒是一种无色的磁性材料，与传统的氧化铁颗粒不同。利用HO-MOF的无色特性，可以很容易地通过磁分离颗粒来直观地证实染料在HO-MOF颗粒上的选择性吸附。此外，目前的能够适应除Ho之外的稀土元素的通用方法使得无色多功能MOF粒子的开发成为可能。
Holmium (Ho) is a lanthanide element with a high magnetic moment. Here, we create an amorphous metal‐organic framework (MOF) that has no long‐range periodic order but retains the basic components of MOF by using isophthalic acid as an organic linker and Ho as a metal species. The resulting spherical Ho‐MOF particles disperse well in a solvent and exhibit excellent magnetic properties in response to magnets. Since Ho has almost no coloring, Ho‐MOF particles are a colorless magnetic material, unlike conventional iron oxide particles. Taking advantage of the colorless property, the selective adsorption of dyes on Ho‐MOF particles can be easily visually confirmed by magnetically separating the particles. In addition, present versatile processes that enable adaptation of lanthanide elements other than Ho enable the development of colorless multifunctional MOF particles.