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USD 45 /hr
Hire Dr. Ronald V.
Argentina
USD 45 /hr
PhD Chemist | Electrochemistry, Photocatalysis & Kinetic Modeling
Profile Summary
Subject Matter Expertise
Services
Work Experience
Researcher
Instituto Tecnológico de Chascomús (INTECH). Universidad Nacional de San Martín (UNSAM). Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)
April 2020 - Present 
Professor
Universidad Nacional de San Martín
March 2020 - Present
Postdoctoral Researcher
Instituto Tecnológico de Chascomús (INTECH). Universidad Nacional de San Martín (UNSAM). Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)
April 2019 - March 2021
Professor (Associate)
Universidad Simón Bolívar
February 2014 - December 2019
Professional Advise
Phosphorus Free Water Solutions
January 2019 - March 2019
Professional Advise
Citamora
March 2014 - September 2015
Professor (Aggregate)
Universidad Simón Bolivar
January 2012 - February 2014
Professor (Instructor II)
Universidad Simón Bolívar
January 2010 - December 2011
Professional Advice to Precowayss
FUNINDES-USB
July 2009 - May 2010
Professor (Instructor I)
Universidad Simón Bolivar
September 2007 - December 2009
Professional Advice to Biggot
FUNINDES-USB
June 2008 - December 2008
Professional Advice to Repsol
FUNINDES-USB
August 2007 - November 2008
Education
Doctor in Chemistry (Química)
Universidad Simón Bolivar
September 2007 - February 2012
Chemical Engineer
Universidad Simón Bolivar
September 2001 - June 2007
Certifications
Publications
JOURNAL ARTICLE
Ronald Vargas, Dany S. Monje, D. Fabio Mercado, Isabel Cristina Ortega-Bedoya, Gloria Cristina Valencia, Sebastián Amaya-Roncancio, Darwin Augusto Torres-Ceron, Elisabeth Restrepo-Parra, Ricardo A. Torres-Palma (2025). Addition of Fe3O4 on Carbon Nitride Moves the ROS Formation from HO Radicals to Singlet Oxygen Leading to an Enhanced and Selective Disinfecting Action . ACS Omega.
Ronald Vargas, Eduardo De Gerónimo, Agustín Mosca, Franco M. Cabrerizo (2025). Insights into chlorination-induced degradation of sulfonylurea herbicides: Unraveling kinetics and intermediates during water treatment . Water Research.
Ronald Vargas, Mirabbos Hojamberdiev, Lorean Madriz, Dilshod Nematov, Ulugbek Shaislamov, Hajime Wagata, Yuta Kubota, Kunio Yubuta, Katsuya Teshima, Nobuhiro Matsushita (2025). Selective synthesis of β-TaON: The critical influence of oxygen partial pressure in ammonolysis . Dalton Transactions.
Ronald Vargas, Daniel Méndez, Daniel Torres, David Carvajal, Franco M. Cabrerizo, Lorean Madriz (2024). Simultaneous p-nitrophenol remediation and hydrogen generation via dual-function photoelectrolytic cell: P–TiO2 photoanode and CuP cathode . International Journal of Hydrogen Energy.
Ronald Vargas, Mirabbos Hojamberdiev, Lorean Madriz, Zukhra C. Kadirova, Kunio Yubuta, Fuxiang Zhang, Katsuya Teshima, Martin Lerch (2024). Untangling the Effect of Carbonaceous Materials on the Photoelectrochemical Performance of BaTaO2N . ACS Omega.
Ronald Vargas, Mirabbos Hojamberdiev, Lorean Madriz, Kunio Yubuta, Zukhra C. Kadirova, Ulugbek Shaislamov, Lokesh Koodlur Sannegowda, Katarzyna Jędruchniewicz, Rafał Typek, Katsuya Teshima, et al. (2024). Unveiling the origin of the efficient photocatalytic degradation of nitazoxanide over bismuth (oxy)iodide crystalline phases . Environmental Science: Nano.
Ronald Vargas, Mirabbos Hojamberdiev, Fuxiang Zhang, Katsuya Teshima, Martin Lerch (2023). Perovskite BaTaO2N: From Materials Synthesis to Solar Water Splitting . Advanced Science.
Ronald Vargas, Lorean Madriz, Franco M. Cabrerizo (2023). Electrochemical studies on β-carbolines alkaloids: Kinetics of irreversible oxidation processes . Electrochimica Acta.
Ronald Vargas, Mirabbos Hojamberdiev, Ana Laura Larralde, Lorean Madriz, Kunio Yubuta, Lokesh Koodlur Sannegowda, Ilona Sadok, Agnieszka Krzyszczak-Turczyn, Patryk Oleszczuk, Bożena Czech (2023). Unlocking the effect of Zn2+ on crystal structure, optical properties, and photocatalytic degradation of perfluoroalkyl substances (PFAS) of Bi2WO6 . Environmental Science: Water Research & Technology.
Ronald Vargas, Mirabbos Hojamberdiev, Zukhra C. Kadirova, Kosaku Kato, Hadi Sena, Aleksei G. Krasnov, Akira Yamakata, Katsuya Teshima, Martin Lerch(2022). Unfolding the Role of B Site-Selective Doping of Aliovalent Cations on Enhancing Sacrificial Visible Light-Induced Photocatalytic H2 and O2 Evolution over BaTaO2N . ACS Catalysis. 12. (2). p. 1403--1414. American Chemical Society ({ACS})
Ronald Vargas, Paulina Alulema-Pullupaxi, Patricio J. Espinoza-Montero, Carol Sigcha-Pallo, Lenys Fernández, Juan M. Peralta-Hernández, J.L. Paz (2021). Fundamentals and applications of photoelectrocatalysis as an efficient process to remove pollutants from water: A review . Chemosphere.
Ronald Vargas, Mirabbos Hojamberdiev, J. Manuel Mora-Hernandez, Akira Yamakata, Kunio Yubuta, Eva Maria Heppke, Leticia M. Torres-Martínez, Katsuya Teshima, Martin Lerch(2021). Time-Retrenched Synthesis of BaTaO2N by Localizing an NH3 Delivery System for Visible-Light-Driven Photoelectrochemical Water Oxidation at Neutral pH: Solid-State Reaction or Flux Method? . ACS Applied Energy Materials. American Chemical Society ({ACS})
H{\'{e}}ctor Rueda and Miguel Arenas and Ronald Vargas-Balda and Sergio Blanco and Pedro Delvasto(2021). Production of a nickel-based catalyst for urea electrooxidation using spent batteries as raw material: Electrochemical synthesis and implications from a circular economy stand-point . Sustainable Materials and Technologies. 29. p. e00296. Elsevier {BV}
Ronald Vargas, Dalia León, Daniel Torres, Alberto Maimone, Franco M. Cabrerizo, Lorean Madriz (2021). Fotoelectroquímica en sistemas nanoestructurados: una discusión desde sus límites naturales . infoANALÍTICA.
Ronald Vargas, Lorean Madriz, Mariano Parra, Fernando S. García Einschlag, Oswaldo Núñez, Franco M. Cabrerizo(2021). Photocatalytic Oxidation of Urea on Surface-Modified Bi2WO6 with trans-4-Stilbenecarboxaldehyde . The Journal of Physical Chemistry C. 125. (23). p. 12682--12689. American Chemical Society ({ACS})
Ronald Vargas, Lorean Madriz, Franco M. Cabrerizo(2021). Exploring Chemical Kinetics at Home in Times of Pandemic: Following the Bleaching of Food Dye Allura Red Using a Smartphone . Journal of Chemical Education. 98. (6). p. 2117--2121. American Chemical Society ({ACS})
Ronald Vargas, Dalia Leon, Alberto Maimone, David Carvajal, Lorean Madriz, Benjamín R. Scharifker, Franco M. Cabrerizo(2021). Unraveling Kinetic Effects during Photoelectrochemical Mineralization of Phenols. Rutile:Anatase TiO2 Nanotube Photoanodes under Thin-Layer Conditions . The Journal of Physical Chemistry C. 125. (1). p. 610--617. American Chemical Society ({ACS})
Mirabbos Hojamberdiev and Ronald Vargas and Vijendra Singh Bhati and Daniel Torres and Zukhra C. Kadirova and Mahesh Kumar(2021). Unraveling the photoelectrochemical behavior of Ni-modified ZnO and TiO2 thin films fabricated by RF magnetron sputtering . Journal of Electroanalytical Chemistry. p. 115009. Elsevier {BV}
Ronald Vargas, Daniel Torres, Lorean Madriz, Benjamín R. Scharifker (2020). Electrochemical formation of copper phosphide from aqueous solutions of Cu(II) and hypophosphite ions . Electrochimica Acta.
Vargas, R., Carvajal, D., Madriz, L., Scharifker, B.R.(2020). Chemical kinetics in solar to chemical energy conversion: The photoelectrochemical oxygen transfer reaction . Energy Reports. 6. p. 2-12.
Vargas, R., Cabrerizo, F.M., Hojamberdiev, M.(2020). FOREWORD: Perspectives of TWAS Young Affiliates from the Global South on Solving World's Energy Issues . Energy Reports. 6. p. 1.
Madriz, L., Tatá, J., Carvajal, D., Núñez, O., Scharifker, B.R., Mostany, J., Borrás, C., Cabrerizo, F.M., Vargas, R.(2020). Photocatalysis and photoelectrochemical glucose oxidation on Bi<inf>2</inf>WO<inf>6</inf>: Conditions for the concomitant H<inf>2</inf> production . Renewable Energy. 152. p. 974-983.
Ronald Vargas, David Carvajal, Brunella Galavis, Alberto Maimone, Lorean Madriz, Benjamín R. Scharifker(2019). High-Field Growth of Semiconducting Anodic Oxide Films on Metal Surfaces for Photocatalytic Application . International Journal of Photoenergy. 2019. p. 1--15. Hindawi Limited
Vargas, R., Carvajal, D., Galavis, B., Maimone, A., Madriz, L., Scharifker, B.R.(2019). High-field growth of semiconducting anodic oxide films on metal surfaces for photocatalytic application . International Journal of Photoenergy. 2019.
Núñez, O., Madriz, L., Carvajal, D., Tatá, J., Vargas, R.(2019). Unprecedented large solvent (H<inf>2</inf>O vs D<inf>2</inf>O) isotope effect in semiconductors photooxidation . Journal of Physical Organic Chemistry. 32. (7).
Hojamberdiev, M., Cai, Y., Vequizo, J.J.M., Khan, M.M., Vargas, R., Yubuta, K., Yamakata, A., Teshima, K., Hasegawa, M.(2018). Binary flux-promoted formation of trigonal ZnIn<inf>2</inf>S<inf>4</inf> layered crystals using ZnS-containing industrial waste and their photocatalytic performance for H<inf>2</inf> production . Green Chemistry. 20. (16). p. 3845-3856.
Núñez, O., Rivas, C., Vargas, R.(2017). Minimizing electron-hole recombination in modified TiO<inf>2</inf> photocatalysis: electron transfer to solution as rate-limiting step in organic compounds degradation . Journal of Physical Organic Chemistry. 30. (7).
Vargas, R., Borrás, C., Méndez, D., Mostany, J., Scharifker, B.R.(2016). Electrochemical oxygen transfer reactions: electrode materials, surface processes, kinetic models, linear free energy correlations, and perspectives . Journal of Solid State Electrochemistry. 20. (4). p. 875-893.
Madriz, L., Carrero, H., Núñez, O., Vargas, R., Herrera, J.(2016). Mechanistic aspects of photocatalytic activity of metalloporphyrin-titanium mixtures in microemulsions . Quimica Nova. 39. (8). p. 944-950.
Blanco, S., Vargas, R., Mostany, J., Borrás, C., Scharifker, B.R.(2015). A novel nickel nanowire amperometric sensor: Direct current vs. alternating current strategies for ethanol, acetaldehyde and acetylcholine detection . Journal of Electroanalytical Chemistry. 740. p. 61-67.
Méndez, D., Vargas, R., Borrás, C., Blanco, S., Mostany, J., Scharifker, B.R.(2015). A rotating disk study of the photocatalytic oxidation of p-nitrophenol on phosphorus-modified TiO<inf>2</inf> photocatalyst . Applied Catalysis B: Environmental. 166-167. p. 529-534.
Cifuentes, L., Flores, D., Madriz, L., Vargas, R.(2015). Electrochemical oxidation of lambdacyhalotrin on PbO<inf>2</inf>-Bi electrodes,Oxidación electroquímica de lambdacialotrina sobre electrodos de PbO<inf>2</inf>-Bi . Quimica Nova. 38. (8). p. 1009-1013.
Núñez, O., Rivas, C., Vargas, R.(2015). Photopotential decay delay on TiO2 surface modified with p-benzaldehydes: Consequences and applications . Journal of Physical Organic Chemistry. 28. (3). p. 191-198.
Vargas, E., Vargas, R., Núñez, O.(2014). A TiO<inf>2</inf> surface modified with copper(II) phthalocyanine-tetrasulfonic acid tetrasodium salt as a catalyst during photoinduced dichlorvos mineralization by visible solar light . Applied Catalysis B: Environmental. 156-157. p. 8-14.
Vargas, R., Díaz, S., Viele, L., Núñez, O., Borrás, C., Mostany, J., Scharifker, B.R.(2014). Electrochemical oxidation of dichlorvos on SnO<inf>2</inf>Sb<inf>2</inf>O<inf>5</inf> electrodes . Applied Catalysis B: Environmental. 144. (1). p. 107-111.
Blanco, S., Vargas, R., Mostany, J., Borrás, C., Scharifker, B.R.(2014). Modeling the growth of nanowire arrays in porous membrane templates . Journal of the Electrochemical Society. 161. (8).
Madriz, L., Tatá, J., Cuartas, V., Cuéllar, A., Vargas, R.(2014). Photoelectrochemical solar cells based on Bi<inf>2</inf>WO<inf>6</inf>,Celdas solares fotoelectroquímicas basadas en Bi<inf>2</inf>WO <inf>6</inf> . Quimica Nova. 37. (2). p. 226-231.
Madriz, L., Carrero, H., Domínguez, J.R., Vargas, R., Fernández, L.(2013). Catalytic hydrotreatment in reverse microemulsions under microwave irradiation . Fuel. 112. p. 338-346.
Madriz, L., Carrero, H., Domínguez, J.R., Vargas, R.(2013). Hydrodemetallation of the phthalocyanine tetrasulfónica acid nickel (II) in aqueous medium NiMo/al<inf>2</inf>O<inf>3</inf> using catalysts and microwave radiation on CoMo/al<inf>2</inf>O<inf>3</inf>,Hidrodesmetalización de la ftalocianina tetrasulfónica ácida de níquel (II) en medio acuoso empleando los catalizadores de NiMo/al<inf>2</inf>O<inf>3</inf> y CoMo/al<inf>2</inf>O<inf>3</inf> bajo radiación microondas . Revista Internacional de Contaminacion Ambiental. 29. (3). p. 201-207.
Vargas, R., Borrás, C., Mostany, J., Scharifker, B.R.(2012). Kinetics of surface reactions on rotating disk electrodes . Electrochimica Acta. 80. p. 326-333.
Vargas, R., Núñez, O.(2010). Photocatalytic degradation of oil industry hydrocarbons models at laboratory and at pilot-plant scale . Solar Energy. 84. (2). p. 345-351.
Vargas, R., Borrás, C., Mostany, J., Scharifker, B.R.(2010). Measurement of phenols dearomatization via electrolysis: The UV-Vis solid phase extraction method . Water Research. 44. (3). p. 911-917.
Vargas, R., Borrás, C., Plana, D., Mostany, J., Scharifker, B.R.(2010). Kinetic study of the electrochemical mineralization of phenols in thin-layer condition . Electrochimica Acta. 55. (22). p. 6501-6506.
Vargas, R., Núñez, O.(2009). Hydrogen bond interactions at the TiO<inf>2</inf> surface: Their contribution to the pH dependent photo-catalytic degradation of p-nitrophenol . Journal of Molecular Catalysis A: Chemical. 300. (1-2). p. 65-71.
Pardo, G., Vargas, R., Núñez, O.(2008). Photocatalytic TiO<inf>2</inf> - assisted decomposition of triton x-100: inhibition of p-nitrophenol degradation . Journal of Physical Organic Chemistry. 21. (12 SPEC. ISS.). p. 1072-1078.
Vargas, R., Núñez, O.(2008). The photocatalytic oxidation of dibenzothiophene (DBT) . Journal of Molecular Catalysis A: Chemical. 294. (1-2). p. 74-81.
PREPRINT
Ronald Vargas, Pedro Delvasto, Héctor Rueda, Andrés Monsalve, Sergio Blanco(2022). Micro-recycling of spent Ni-Cd batteries for the obtention of electrocatalytic coatings . Research Square Platform {LLC}
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