Magnetic cyclodextrin-chitosan/GO with high surface area was
synthesized via a simple method and examined for the removal
of hydroquinone from simulated wastewater.36 The process was
found to obey the Freundlich adsorption model and its kinetics
followed a pseudo-second-order rate equation. The removal
mechanism of this adsorbent was thought to be the electrostatic
adsorption of hydroquinone in the form of negatively charged
hydroquinone by positively charged chitosan, accompanying