Sus principales áreas de investigación son:

• Recuperación de aguas en relaves arcillosos y en agua de mar en industria minera.
• Remoción de contaminantes de iones poliatómicos en aguas de riego para la agricultura.
• Adsorción de compuestos por métodos de simulación computacional.
• Estudio de materiales laminares adsorbentes.

Proyectos

1. Effect of salts and clays in water clarification: Molecular recognition phenomena in mineral processing in freshwater and saltwater by molecular modeling tools. Fondecyt. 3200978 Postdoctorado 2020-2023. Investigador Responsable.

Publicaciones

1. Quezada, G. R., Leiva, W., Saavedra, J. H., Robles, P., Gálvez, E., & Jeldres, R. I. (2022). A Molecular Dynamics Simulation of Polymers’ Interactions with Kaolinite (010) Surfaces in Saline Solutions. Polymers, 14(18), 3851.
2. Quezada, G. R., Piceros, E., Saavedra, J. H., Robles, P., & Jeldres, R. I. (2022). Polymer affinity with quartz (1 0 1) surface in saline solutions: A molecular dynamics study. Minerals Engineering, 186, 107750.
3. Alvarado, O., Quezada, G. R., Saavedra, J. H., Rozas, R. E., & Toledo, P. G. (2022). Species Surface Distribution and Surface Tension of Aqueous Solutions of MIBC and NaCl Using Molecular Dynamics Simulations. Polymers, 14(10), 1967.
4. Quezada, G. R., Mejía, A., Piceros, E., Robles, P., Nieto, S., Gálvez, E., Jeldres, R. I. (2022). Describing the adsorption of sodium tripolyphosphate on kaolinite surfaces in a saline medium by molecular dynamics. Minerals Engineering, 175, 107280.
5. Quezada, G. R., Toro, N., Saavedra, J., Robles, P., Salazar, I., Navarra, A., & Jeldres, R. I. (2021). Molecular Dynamics Study of the Conformation, Ion Adsorption, Diffusion and Water Structure of Soluble Polymers in Saline Solutions. Polymers, 13(20), 3550.
6. García, K. I., Quezada, G. R., Arumí, J. L., Urrutia, R., & Toledo, P. G. (2021). Adsorption of Phosphate Ions on the Basal and Edge Surfaces of Kaolinite in Low Salt Aqueous Solutions Using Molecular Dynamics Simulations. The Journal of Physical Chemistry C, 125 (38), 21179-21190.
7. Quezada, G. R., Piceros, E., Robles, P., Moraga, C., Gálvez, E., Nieto, S., & Jeldres, R. I. (2021). Polyacrylic Acid to Improve Flotation Tailings Management: Understanding the Chemical Interactions through Molecular Dynamics. Metals, 11(6), 987.
8. Quezada, G. R., Rozas, R. E., & Toledo, P. G. (2021) Polyacrylamide adsorption on (1 0 1) quartz surfaces in saltwater for a range of pH values by molecular dynamics simulations. Minerals Engineering, 162, 106741.
9. Quezada, G. R. & Toledo, P. G. (2021). Complexation of Alkali and Alkaline-Earth Metal Cations at Spodumene-Saltwater Interfaces by Molecular Simulation: Impact on Oleate Adsorption. Minerals, 11(1), 12.
10. Quezada, G. R., Jeldres, M., Toro, N., Robles, P., Toledo, P. & Jeldres, R. I. (2021). Understanding the flocculation mechanism of quartz and kaolinite with polyacrylamide in seawater: A molecular dynamics approach. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 608, 125576.
11. Quezada, G. R., Jeldres, M., Robles, P., Toro, N., Torres, D. & Jeldres, R. I. (2020). Improving the Flocculation Performance of Clay-Based Tailings in Seawater: A Population Balance Modelling Approach. Minerals. 10(9), 782.
12. Quezada, G. R., Saavedra, J. H., Rozas, R. E., & Toledo, P. G. (2020). Molecular dynamics simulations of the conformation and diffusion of partially hydrolyzed polyacrylamide in highly saline solutions. Chemical Engineering Science, 214, 115366.
13. Quezada, G. R., Jeldres, M., Toro, N., Robles, P., & Jeldres, R. I. (2020). Reducing the Magnesium Content from Seawater to Improve Tailing Flocculation: Description by Population Balance Models. Metals, 10(3), 329.
14. Jeldres, M., Piceros, E. C., Toro, N., Robles, P., Nieto, S., Quezada, G. R., & Jeldres, R. I. (2020). Enhancing the sedimentation of clay-based tailings in seawater by magnesium removal treatment. Separation and Purification Technology, 242, 116762.
15. Quezada, G. R., Ayala, L., Leiva, W. H., Toro, N., Toledo, P. G., Robles, P., & Jeldres, R. I. (2020). Describing Mining Tailing Flocculation in Seawater by Population Balance Models: Effect of Mixing Intensity. Metals, 10(2), 240.
16. Quezada, G., & Toledo, P. G. (2020) Structure of the Interface Between Lithium-Rich Spodumene and Saltwater by Density Functional Theory Calculations and Molecular Dynamics Simulations. The Journal of Physical Chemistry C, 124(2), 1446-1457.
17. Quezada, G., Ramos, J., Jeldres, R. I., Robles, P., & Toledo, P. G. (2020). Analysis of the flocculation process of fine tailings particles in saltwater through a population balance model. Separation and Purification Technology, 237, 116319.
18. Saldaña, M., González, J., Jeldres, R. I., Villegas, Á., Castillo, J., Quezada, G., & Toro, N. (2019). A Stochastic Model Approach for Copper Heap Leaching through Bayesian Networks. Metals, 9(11), 1198.
19. Quezada, G., Rozas, R. E., & Toledo, P. G. (2019). Ab initio calculations of partial charges at kaolinite edge sites and molecular dynamics simulations of cation adsorption in saline solutions at and above the pH of zero charge. The Journal of Physical Chemistry C, 123(37), 22971-22980.
20. Jeldres, R., Piceros, E., Leiva, W., Toledo, P., Quezada, G., Robles, P., & Valenzuela, J. (2019). Analysis of Silica Pulp Viscoelasticity in Saline Media: The Effect of Cation Size. Minerals, 9(4), 216.
21. Quezada G., Jeldres R., Fawell P., Toledo P. (2018) Use of molecular dynamics to study the conformation of an anionic polyelectrolyte in saline medium and its adsorption on a quartz surface. Miner. Eng., 129C, 102-105.
22. Romero C., Jeldres R., Quezada G., Concha F., Toledo G. (2018) Zeta potential and viscosity of colloidal silica suspensions: Effect of seawater salts, pH, flocculant, and shear rate Colloids and Surfaces A: Physicochemical and Engineering Aspects, 538, 210-218.
23. Quezada G., Rozas R., Toledo P. (2017) Molecular dynamics simulations of quartz (101)-water and corundum (001)-water interfaces: Effect of surface charge and ions on cation adsorption, water orientation, and surface charge reversal The Journal of Physical Chemistry C, 121, 25271-25282.
24. Quezada G., Jeldres R., Goñi C., Toledo P., Stickland A., Scales P. (2017) Viscoelastic behaviour of flocculated silica sediments in concentrated monovalent chloride salt solutions Minerals Engineering, 110, 131-138.
25. Quezada G., Toledo P. (2016) Molecular Simulation of the Adsorption of Seawater Salts On A Negatively Charged Quartz Surface, International Journal of Advances in Science, Engineering and Technology (IJASEAT), 4(1) 51-56.
26. Quezada G., Saavedra J., Rozas R., Toledo P. (2016) Generation of Spatially Correlated Network Models of Porous Media. Transport in Porous Media, 111(2) 499-515.