An Overview of the Types of Edible Metal Organic Framework (MOF) Nanostructures as Biocompatible and Efficient Dye Adsorbent

Metal-organic frameworks are coordination polymer compounds which composed of metal as a node and organic ligands as a linker. These compounds are crystalline and porous and the size and shape of their cavities can be engineered. These features, along with a very high surface-to-volume ratio (in cases up to m2/g of 14600) make them suitable for various applications such as heterogeneous catalysts, adsorbents, gas separation and storage agents, sensors, fuel cells, solar cells and environmental pollutant removal. Edible metal-organic frameworks are a group of metal-organic frameworks that have a bio-compatible ligand and central metal. Edible metal-organic frameworks have been synthesized in various ways. Edible metal-organic frameworks as biocompatible and effective adsorbent of dyes and drugs are available in different types depending on the type of ligands and central metals are categorized. Edible metal-organic frameworks absorb and retain dyes in the pores due to their high porosity, thus purifying the toxic environment from contaminants. Here, types of metal centers and ligands used in the manufacture of edible metal-organic frameworks have been studied and categorized.