Marco Brown, Jose Luis

Researcher CONICET

Professor  ECyT-UNSAM

jlbrown@unsam.edu.ar

 

CONICET Profile

https://orcid.org/0000-0003-2984-5923

https://scholar.google.com.ar/citations?hl=es&user=9kHODOIAAAAJ

https://www.scopus.com/authid/detail.uri?authorId=54950178500

 

Professional resume + Expertise

Holds a degree in Chemistry from Simón Bolívar University in Caracas and a PhD in Chemistry from the University of Buenos Aires. Possesses extensive experience in the design, development, synthesis, characterization, and implementation of iron- and aluminum-modified inorganic materials (both natural and synthetic) for the removal of contaminants—such as arsenic, uranium, chromium, lead, and organic substances—via adsorption, redox, or co-precipitation mechanisms.

Has supervised or co-supervised 11 students, including two master's students, and currently supervises two doctoral theses. Has led various research and development projects and participated in others. Has collaborated with researchers from Argentina, Spain, the UK, and Germany. Experienced in material characterization techniques such as X-ray diffraction, infrared absorption spectroscopy, small-angle X-ray scattering, scanning and transmission electron microscopy, X-ray photoelectron spectroscopy, and textural characterization of solids via N2 adsorption, among others.

 

Key Words

Remediation processes; Adsorption; Enviromental chemistry; Synthesis of materials; Nanoparticles; Advanced reduction processes; Green processes and materials for contaminants removal

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Fundings

Principal investigator for the projects:

“Removal of contaminants in water using systems based on iron nanoparticles supported on clay minerals"

“Removal of U(VI), Cr(VI) and As(V) in water using a system based on iron nanoparticles supported on clay minerals or diatoms, prepared by a method of low environmental impact”

Co-Investigator in the projects:

“Development of modular processes for the removal of persistent pollutants in complex matrices”

“Anthropogenic effects on the wetlands of the Reconquista river basin: diagnosis integral environmental, development of remediation processes and elaboration of protocols for the territory management”

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PhD Students:

Sofía Paronetto

Nicolás Arencibia

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Most important publications

  1. Arencibia, N., Contreras, C. Lamas, D., Crane, R., Marco-Brown, J.L.*, Two-step, low-cost and biocompatible removal of hexavalent chromium using yerba mate (Ilex paraguariensis) and montmorillonite-rich bentonite. Chemical Papers (2026). https://doi.org/1007/s11696-025-04551-1 *corresponding author.
  2. Paronetto, G.S., Svartz, G., Olivelli, M.S., Marco-Brown, J.L.*, Candal, R. Ecotoxicological efficiency of Cr(VI) removal treatment with reductive biogenic iron-based material determined by amphibian larval bioassays. Chemosphere (2025). http://dx.doi.org/10.1016/j.chemosphere.2025.144215 *corresponding author.
  3. Arencibia, N., Gómez-Osuna, F., Arencibia, V., Litter, M.I., Marco-Brown, J.L.* Response surface methodology for the green obtention of polyphenols from yerba mate. Canadian Journal of Chemical Engineering (2024). https://doi.org/10.1002/cjce.25236 *corresponding author.
  4. Paronetto, G.S., Olivelli, M.S., Montes, L., Fernández, M., Delfosse, V., Marco-Brown J.L.*, Candal, R. One-pot green-synthesis of supported reductive biogenic iron-based materials for the removal of Cr(VI). Industrial & Engineering Chemistry Research (2024). http://doi.org/10.1021/acs.iecr.3c04212 *corresponding author.
  5. Marco-Brown, J.L., Melotta, M., Fernández, M., Iriel, A. Arsenic and fluoride adsorption from multielement solutions onto aluminum-modified montmorillonite. Groundwater for Sustainable Development (2024). https://doi.org/10.1016/j.gsd.2024.101205
  6. Bracco, E.B., Marco-Brown, J.L., Butler, M., Candal, R. Degradation of oxytetracycline via photo-Fenton process after adsorption on natural and iron-modified montmorillonite clays. Environmental Nanotechnology, Monitoring & Management (2023). http://doi.org/10.1016/j.enmm.2023.100778.
  7. Marco-Brown, J.L.*, Valiente, R., Ramos, C.P., Fernández, M.A., Candal, R. Stable nZVI-based nanocomposites for adsorption and reduction processes: The case of U(VI) removal. Environmental Nanotechnology, Monitoring and Management (2021). http://doi.org/10.1016/j.enmm.2021.100563. *corresponding author.
  8. Facundo Barraqué, María L. Montes, Mariela A. Fernández, Roberto Candal, Rosa M. Torres Sánchez, Jose L. Marco Brown*. Arsenate removal from aqueous solution by montmorillonite and organo-montmorillonite magnetic materials. Environmental Research (2021). http://doi.org/1016/j.envres.2020.110247. *corresponding author.
  9. Analia Iriel, Jose L. Marco-Brown*, Maja Diljkan, M. Alcira Trinelli, María dos Santos Afonso and Alicia Fernández Cirelli. Arsenic Adsorption on Iron-Modified Montmorillonite: Kinetic Equilibrium and Surface Complexes. Environmental Engineering Science 37 (2020) 22-32. http://doi.org/10.1089/ees.2019.0220 *corresponding author.

 

Talks:

"Materiales y procesos de bajo costo y amigables con el ambiente, para la remoción de contaminantes" Mayo 2025

To enjoy the talk access here. (Spanish)

"Raw and modified clays. Adsorption and removal processes of pollutants"

To enjoy the talk access here.

"Nanomateriales para remediación ambiental: arcillas naturales, modificadas y nanopartículas de hierro soportadas"

To enjoy the talk access here. (Spanish)