Various plant extracts and materials have the potential to adsorb heavy metals from polluted water. Here are some recommendations based on the search results:

-Cellulose Schiff Base, derived from Safflower stem wastes, is a bio-based polymer ligand suitable for studying metal adsorption.

- Microbial and plant-derived biomass are viable options for eliminating heavy metals from wastewater.

-Activated carbon is a widely accepted adsorbent for removing heavy metals from water.

-Chitosan, a biopolymer, is effective in removing heavy metals from wastewater.

-Algae can be employed for biosorption to remove heavy metals from wastewater.

-Peat moss is a suitable adsorbent for removing heavy metals from wastewater.

It should be noted that the efficiency of these materials depends on factors such as the type and concentration of heavy metals, water pH, and the properties of the adsorbent material.