What can we use to remove toxic dyes from wastewater?

Taming the topology of calix[4]arene-based 2D-covalent organic frameworks: Interpenetrated vs noninterpenetrated frameworks and their selective removal of cationic dyes

So basically…

Synthetic dyes are common ingredients in the textile industry, but because of their general use, they often find their way into waterbodies from industrial wastewater, where they pollute the water and threaten water security.

Removing these polluting dyes can be achieved through adsorption, where the dyes are collected in the pores of highly porous materials that scoop the pollutants from water and trap them in the pores.

Using complicated chemistry and materials science, researchers have created bowl-shaped organic molecules which can collect the water and remove the dyes without the molecules themselves dissolving. Additionally, the features of these molecules can be fine-tuned by adjusting the quantities of raw ingredients. They’re also two-dimensional and could be applied to other water-cleaning applications if they can be made into powders or membranes.

Interested? You can read more here.