Selective Removal of Highly Toxic Selenite by a Biobased Zirconium-Polyphenolic Supramolecular Gel.

The green and facile biobased functional materials have attracted great attention due to the promising potential to deal with the water pollution of toxic selenium ions that act as a serious threat to human health and the ecological environment. The development of cheap and eco-friendly approaches to remove SeO is of great significance for the safety of drinking water. However, there are some disadvantages in most of the employed methods, such as poor removal capability, high cost, and unsustainability.