Nanostructured cobalt ions for the adsorption of an organic dye: Mechanism and electrochemical study in the presence of carbon nanotubes

- A nano-adsorbent containing Co-nanoparticles supported on SiO2-Al2O3 was prepared.
- The synthesized materials are characterized by different spectroscopic techniques.
- The application of nano-adsorbent was studied to remove methyl orange.
- It effectively scavengers methyl orange from contaminated water under 10 min.
- Oxidation of Co NPs took place easier and at lower potentials in the presence of MO.