Marco Brown, Jose Luis

Associate Researcher CONICET

Associate 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

Marco-Brown is a chemist graduated from the Simon Bolivar University (Venezuela) and he obtained his PhD in chemistry at the Buenos Aires University (Argentina). He is an Associate Researcher from CONICET and Associate Professor in Chemistry at the San Martín National University. His expertise include adsorption processes on inorganic matrices, synthesis and characterization of nanomaterials and advanced reduction processes for environment remediation. Nowadays he focuses his research in the green synthesis of nanoparticles and its use as materials for pollutants removal.

He has extensive experience in the use of laboratory instruments, equipment and techniques, such as: * Design and synthesis of inorganic materials. * Textural characterization of solids by N2 adsorption. * Spectroscopies of UV-visible, FTIR, of photoelectrons emitted by X-rays (XPS). * Chromatography, HPLC, ionic. * Thermogravimetric techniques. * X-ray diffraction. * Analysis of transmission and scanning micrographs, EDS. * Determination and analysis of environmental parameters in water. * Experience in research work related to remediation of aquatic environments via adsorption, advanced photocatalysis, reduction. * Experience in the synthesis of inorganic materials based on nanoparticles, clay minerals and titanium oxides. * Experience in surface adsorption studies on natural and modified clay minerals and on titanium dioxide. * Experience in remediation studies using iron nanoparticles.

 

Key Words

Remediation processes; Adsorption; Enviromental chemistry; Synthesis of materials; Nanoparticles; Advanced reduction processes

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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., 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.
  2. 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.
  3. 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
  4. 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.
  5. 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.
  6. 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.
  7. 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:

"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)