Adsorption of copper to different biogenic oyster shell structures

- Adsorption of copper to waste oyster shell occurs rapidly at pH 5.5.
- Copper adsorbs to the different structures of oyster shell at different rates.
- The prismatic layer dominates copper sorption rather than the nacreous layer.
- SEM analysis shows a porous open network structure to the prismatic layer.
- Surface ζ-potentials establish electrostatic attraction to drive copper sorption.