Kinetic study of copper ions biosorption onto barley straw 2021 Keywords: Kinetic Study, Copper Ions, Barley Straw, Biosorption, Chemisorption Marković, Miljan Štrbac, Nada Božić, Dragana Stanković, Velizar Grekulović, Vesna Zdravković, Milica Gorgievski, Milan All rights reserved https://unilib.phaidrabg.rs/o:467 cobiss:64378377 XIV International Mineral Processing and Recycling Conference Belgrade, Serbia, 12-14 May 2021 eng Abstract: In this paper, the kinetic study of the copper ions biosorption onto barley straw is presented. The obtained experimental data were modeled using three kinetic models: pseudo-first order kinetic model, pseudo-second order kinetic model, and the intraparticle diffusion kinetic model (Weber-Morris model). Change in the adsorption capacity with process time was also monitored. Analyzing the obtained results, it can be concluded that the pseudo-second order kinetic model shows the best agreement with the analyzed data, which leads to a conclusion that chemisorption is a possible mechanism of binding the copper ions onto the surface of the barley straw. application/pdf 3289345 bytes info:eu-repo/semantics/conferenceProceedings