Machines. Technologies. Materials.
Vol. 20 (2026), Issue 2, pg(s) 56-58

TECHNOLOGIES

Kinetic investigation of copper ions adsorption onto corn stalks

  • 1 University of Belgrade Technical Faculty in Bor, Serbia

Abstract

Corn stalk was used as a biosorbent for the adsorption of copper ions from synthetic solutions. To examine the mechanism of the adsorption process and identify the potential rate-determining step, the following kinetic models were used in this study: the pseudo-first order kinetic model, the pseudo-second order kinetic model, the Elovich kinetic model, and the interparticle diffusion model. Kinetic studies show that copper ions adsorption followed the pseudo-second order kinetic model. The maximum adsorption capacity was 5.5 mg g⁻¹. The results indicate that corn stalk can be successfully used as a biosorbent for the adsorption of copper ions from synthetic solutions.

Keywords

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