Adsorption of Haloperidol Drug on Alginate‐Attapulgite‐Ag NPs Composite

Abstract This work includes the synthesis of environmentally favorable and biodegradable components alginate balls containing attapulgite‐silver nanoparticles with different amount of hydroxyapatite. The synthesized composite materials showed good adsorption properties in removing of the organic contaminants (antipsychotics, haloperidol). The addition of hydroxyapatite and alginate to the attapulgite (APT) clay enhanced its adsorption ability through chemical changes. In the current research, haloperidol adsorption is studied on alginate‐attapulgite‐Ag NPs composite. The experiments are carried out at concentrations of the haloperidol (25, 50 and 100 mg/L) at different temperature and pH with different amounts of adsorbent and contact time of 3 h. The remaining concentration of the drug after adsorption is calculated, and the results obtained showed that the adsorption efficiency is 97.6% at pH = 9 and temperature of 15 °C.