Browsing Artículos (éditos e inéditos) by Author "Vera, María Laura"
Now showing items 1-13 of 13
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Advances on the synthesis of porous TiO2 coatings by anodic spark oxidation : photocatalytic reduction of Cr(VI)
Traid, Hernán Darío; Vera, María Laura; Ares, Alicia Esther; Litter, Marta Irene (Elsevier, 2017-04-15)Porous TiO2 coatings were obtained by anodic oxidation in spark discharge conditions, varying the range of current density (200–3000 A m−2) and the electrolyte concentration (H2SO4; 1 and 4 M). The samples were characterized ... -
Application of a fenton process after a biological nitrification treatment : a successful case for leachate treatment
Traid, Hernán Darío; Vera, María Laura; Escalada, Gustavo; López, Iván Emanuel; Dwojak, Anabela Natalia; Litter, Marta Irene (Elsevier, 2022-04-09)Leachate is one of the most complex wastewater due to the variable composition depending on landfill age, time, climate, waste composition, etc. Usually, conventional treatments are not enough to satisfy the environmental ... -
Evaluation of the influence of texture and microstructure of titanium substrates on TiO2 anodic coatings at 60 V
Vera, María Laura; Avalos, Martina Cecilia; Rosenberger, Mario Roberto; Bolmaro, Raúl Eduardo; Schvezov, Carlos Enrique; Ares, Alicia Esther (Elsevier, 2017-09-01)The current paper analyzes the influence of texture and microstructure of Ti substrates on morphology and color of titanium dioxide coatings obtained by anodic oxidation. Substrates of Ti grade 2 and Ti grade 5 with different ... -
Fabricación de recubrimientos nanotubulares de TiO2 mediante oxidación anódica en NH4- glicerol-agua
Dwojak, Anabela Natalia; Vera, María Laura; Traid, Hernán Darío; Litter, Marta Irene; Schvezov, Carlos Enrique (Asociación Argentina de Materiales, 2019-06-01)La oxidación anódica de titanio en electrolitos conteniendo fluoruro es una técnica económica para obtener recubrimientos nanotubulares inmovilizados de TiO2 de elevada área superficial. En el presente trabajo, se sintetizaron ... -
Heterogeneous photocatalytic Cr(VI) reduction with short and long nanotubular TiO2 coatings prepared by anodic oxidation
Vera, María Laura; Traid, Hernán Darío; Henrikson, Edgard Rubén; Ares, Alicia Esther; Litter, Marta Irene (Elsevier, 2018-01-01)Nanotubular TiO2 coatings prepared by anodic oxidation of titanium were evaluated for the first time in the photocatalytic Cr(VI) reduction in the presence of EDTA. Small nanotubes (SN) were prepared by using aqueous ... -
Influence of anodizing variables on Cr (VI) photocatalytic reduction using TiO2 nanotubes obtained by anodic oxidation
Dwojak, Anabela Natalia; Vera, María Laura; Traid, Hernán Darío; Maydana, María F.; Litter, Marta Irene; Schvezov, Carlos Enrique (Elsevier Science, 2017-07-28)The effect of growth conditions of TiO2 films with nanotubular structures produced by anodic oxidation in electrolytes containing NH4F in glycerol and water was investigated. The effect of anodizing voltage, time, NH4F ... -
Influence of the electrolyte concentration on the smooth TiO2 anodic coatings on Ti-6Al-4V
Vera, María Laura; Colaccio, Ángeles; Rosenberger, Mario Roberto; Schvezov, Carlos Enrique; Ares, Alicia Esther (MDPI, 2017-03-03)To obtain smooth TiO2 coatings for building a new design of Ti-6Al-4V heart valve, the anodic oxidation technique in pre-spark conditions was evaluated. TiO2 coating is necessary for its recognized biocompatibility and ... -
Influencia de los tratamientos térmicos en recubrimientos anódicos nanotubulares de TiO2
Vera, María Laura; Henrikson, Edgard Rubén; Traid, Hernán Darío; Ares, Alicia Esther; Litter, Marta Irene (Universidad Federal de Rio de Janeiro, 2018-07-19)El TiO2 es un semiconductor ampliamente utilizado en el proceso de fotocatálisis heterogénea para la des-contaminación de aguas. Diversos estudios indican que las estructuras ordenadas de nanotubos en fase ana-tasa mejoran ... -
Low-cost nanostructured coating of anodic aluminium oxide synthesized in sulphuric acid as electrolyte
Bruera, Florencia Alejandra; Kramer, Gustavo Raúl; Vera, María Laura; Ares, Alicia Esther (MDPI AG, 2021-03-09)The anodic oxidation of aluminium is an electrochemical technique that allows obtaining nanostructures with easily adjustable morphology depending on the synthesis variables, for its application in medicine, engineering, ... -
Production and characterization of TiO2 nanofilms for hemocompatible and photocatalytic applications
Schvezov, Carlos Enrique; Vera, María Laura; Schuster, Jonathan Maximiliano; Rosenberger, Mario Roberto (Springer, 2017-08-10)Titanium dioxide (TiO2) coatings are currently produced for hemocompatible and photocatalytic applications by using two techniques: sol–gel and anodic oxidation. In this review, the research advances on TiO2 nanofilms ... -
Recubrimientos porosos de dióxido de titanio sintetizados por oxidación anódica
Traid, Hernán Darío; Dwojak, Anabela Natalia; Vera, María Laura; Ares, Alicia Esther; Litter, Marta Irene (Universidad Federal de Rio de Janeiro, 2018-07-19)El TiO2 es uno de los materiales más utilizados en el proceso de fotocatálisis heterogénea debido a su disponibilidad comercial, bajo costo, baja toxicidad y elevada actividad fotocatalítica. Uno de los métodos más eficientes ... -
Smooth semicompact multilayer coating of TiO2 obtained by combining anodic oxidation and sol-gel techniques
Schuster, Jonathan Maximiliano; Vera, María Laura; Schvezov, Carlos Enrique; Rosenberger, Mario Roberto (Elsevier, 2022-12-15)Titanium oxide provides biological and hemocompatible properties to different biomedical devices made of titanium or its alloys. However, since this oxide naturally has a very low thickness and low tribological performance, ... -
Synthesis and morphological characterization of nanoporous aluminum oxide films by using a single anodization step
Bruera, Florencia Alejandra; Kramer, Gustavo Raúl; Vera, María Laura; Ares, Alicia Esther (MDPI AG, 2019-02-13)Nanoporous anodic aluminum oxide (AAO) films play an important role in nanotechnology due to their easily adjustable morphological properties and wide range of applications. Thus, a deep and systematic characterization of ...