Recently, the Quality and Safety Task Force of the Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences has made new progress in the application of MOFs/nanocomposite membranes in the analysis of metal ions, and related research results”Recent advances in metal-organic frameworks/membranes for adsorption and removal of metal ions” was published on TrAC Trends in Analytical Chemistry (IF= 9.801, DOI:10.1016/j. trac.2021.116226).
Metal ions are widely found in nature. On the one hand, they are essential trace elements for the human body; on the other hand, they are heavy metal ions that cause environmental pollution and endanger human health. Therefore, it is of great significance to analyze, detect, enrich and adsorb metal ions in the environment and food. Metal-organic frameworks (MOFs) are a type of crystalline porous material with a periodic network structure. It is formed by bridging organic ligands formed by self-assembly of inorganic metal-containing nodes. It has a high specific surface area, tunable micropores, and low The characteristics of skeleton density, etc., are widely used in the fields of ion adsorption, drug delivery, gas storage and chemical separation. However, most studies only emphasize the structure design and modification strategy of MOFs-derived nanostructures as high-performance adsorbents for environmental remediation, and lack of systematic summary and analysis of MOFs and their nanocomposite membrane materials in the metal ion removal mechanism and application. .
In response to the above problems, this research system summarizes the relative synthesis methods and modification strategies of MOFs and MOFs/nanocomposite membranes, and focuses on the different types of MOFs nanocomposite materials. The latest developments in the application of metal ion enrichment, adsorption and analysis and detection, discussed the technical problems that need to be solved and the future development trend of MOFs materials. This research provides an important theoretical basis for in-depth understanding of the rational design and application research of MOFs with different morphological structures, and to promote the development of MOFs nanocomposite membrane materials.
The Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences is the first to complete the thesis. The Master’s students of the Institute of Vegetables Gao Mingkun and Associate Researchers Liu Guangyang are the first authors of the thesis. Researchers Xu Donghui and Yang Professor Xin (Harbin Institute of Technology) and Associate Researcher Liu Guangyang are the corresponding authors. The research was funded by the National Natural Science Foundation of China, the National Key Research and Development Program, the National Bulk Vegetable Industry Technology System, and the Science and Technology Innovation Project of the Chinese Academy of Agricultural Sciences, and the support of the Key Laboratory of Vegetable Quality and Safety Control of the Ministry of Agriculture and Rural Affairs.
link to the original text:https://doi.org/10.1016/j.trac.2021.116226