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Álvaro Sampieri

Benemérita Universidad Autónoma de Puebla

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Geolar Fetter

Benemérita Universidad Autónoma de Puebla

P. Bosch

Instituto de Química Orgánica General

Katia Fajerwerg

Centre National de la Recherche Scientifique

G. Pérot

Université de Poitiers

Catherine Louis

Sorbonne Université

I.I. Ruiz-López

Benemérita Universidad Autónoma de Puebla

M. Breysse

Sorbonne Université

Sylvette Brunet

Université de Poitiers

Juliette Blanchard

Laboratoire de Réactivité de Surface

Anne Dolbecq

Institut Lavoisier de Versailles

Cooperative Institutions

Benemérita Universidad Autónoma de Puebla

Centre National de la Recherche Scientifique

Universidad Nacional Autónoma de México

Institut Lavoisier de Versailles

Universidad Autónoma Metropolitana

Université de Versailles Saint-Quentin-en-Yvelines

Sorbonne Université

University College London

Laboratoire de Réactivité de Surface

Instituto Politécnico Nacional

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RETENCIÓN DE CONTAMINANTES AROMÁTICOS LÍQUIDOS MEDIANTE HIDROTALCITAS, ÓXIDOS MIXTOS DERIVADOS E HIDROTALCITAS RECONSTRUIDAS

Revista Internacional de Contaminación Ambiental (2022)

Franchescoli D. Velázquez-Herrera Álvaro Sampieri Patricia Paredes-Carrera Geolar Fetter

Las arcillas aniónicas o hidrotalcitas son materiales multifuncionales que permiten optimizar procesos como la adsorción de contaminantes, entre los cuales los compuestos orgánicos aromáticos representan un grave problema ambiental, ya que se encuentran dispersos en aguas residuales generadas normalmente por la industria petroquímica. En este trabajo se presenta la síntesis de hidrotalcitas y de óxidos mixtos derivados de éstas, empleados en la adsorción de contaminantes orgánicos de tipo BTEX-fenol presentes en medio acuoso. Los resultados se compararon con los de las hidrotalcitas reconstruidas en presencia de BTEX-fenol. Se encontró que las propiedades adsorptivas dependen fundamentalmente de la composición química de los materiales y de la estructura. Si bien las hidrotalcitas iniciales y los óxidos mixtos resultaron ser adsorbentes eficientes, las hidrotalcitas reestructuradas fueron mucho más activas.

10.20937/rica.53995

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Novel bio-fertilizer based on nitrogen-fixing bacterium immobilized in a hydrotalcite/alginate composite material

Environmental Science and Pollution Research (2022)

Franchescoli D. Velázquez-Herrera Marta Lobo-Sánchez Giovanna M. Carranza-Cuautle Álvaro Sampieri María del Rocio Bustillos‐Cristales

Calcium alginate

Hydrotalcite

10.1007/s11356-021-17943-z

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Citations (8)

Photodegradation of Phenol, 2-Chlorophenol and o-Cresol by Iron Oxide Nanoparticles

Nanoscience &amp Nanotechnology-Asia (2011)

R. Suárez I. Hernández-Pérez Esteban Montiel Palacios J.P. Pérez-Orozco Álvaro Sampieri

Iron oxide nanoparticles were prepared by mixing either aged iron(II) or aged iron(III) hydrated chlorides with hydrogen peroxide at pH 4.2±0.1. Iron oxide nanoparticles were identified in the mixtures of iron(II/III) chlorides with hydrogen peroxide by transmission electron microscopy (TEM) analyses. TEM analyses showed irregular sizes and the formation of different phases of iron oxide (α-Fe2O3, β-Fe2O3, γ-Fe2O3, -Fe2O3…). The variety of iron(III) oxide phases was a consequence of interactions of hydrogen peroxide with different ferric oligomers and iron oxohydroxides formed during the aging of iron(II/III) chloride mixtures. In order to decompose phenol or 2-chlorophenol or o-cresol a photocatalytic reaction was carried out in a “reactor” with iron oxide nanoparticles, visible radiation and hydrogen peroxide. Each reaction was kept at room temperature and pH 3.8±0.1. The photocatalytic processes were analyzed through UV spectrophotometry, chemical oxygen demand (COD) and total organic carbon (TOC) measurements. Iron oxide nanoparticles, in the photodegradation of phenol, 2-chlorophenol and o-cresol, presented bifunctional catalytic properties, such as a semiconductor photocatalyst and probably as Lewis acid catalyst. Keywords: Acid lewis catalyst, ferric oligomers, heterogeneous photocatalysis, hydrogen peroxide, iron oxide nanoparticles, phenol derivatives, semiconductor photocatalyst, azo-dye, 2-chlorophenol, hydroquinone, phenol, UV radiation, radiative output, iron oxyhydroxide

Photodegradation

Hydroquinone

Iron oxide nanoparticles

10.2174/2210682011101010031

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Citations (3)

CCDC 771548: Experimental Crystal Structure Determination

The Cambridge Structural Database (2011)

L.M.R. Albelo A. Rabdel Ruiz‐Salvador D.W. Lewis Alberto Gómez‐Treviño Pierre Mialane

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

10.5517/cctwvn5

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Influence of Cu on Au/Al2o3 Catalyst for Co Oxidation: Mitigating Deactivation for Sintering and Carbonate Formation

Álvaro Sampieri Kareen J. Lopez Gamaliel Che‐Galicia Rodolfo Zanella Jesús F. Guayaqiuil-Sosa

10.2139/ssrn.5128879

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CCDC 757758: Experimental Crystal Structure Determination

The Cambridge Structural Database (2010)

L.M. Rodríguez-Albelo A. Rabdel Ruiz‐Salvador Álvaro Sampieri D.W. Lewis Alberto Gómez‐Treviño

10.5517/cctfhtj

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Bactericidal Performance of Chlorophyllin-Copper Hydrotalcite Compounds

Water Air & Soil Pollution (2015)

Gabriele Rocha Oliveira Laricy Janaína Dias do Amaral Marcelo Giovanela Janaína da Silva Crespo Geolar Fetter

Chlorophyllin

Hydrotalcite

Enterobacter aerogenes

Salmonella enterica

Oscillatoria

10.1007/s11270-015-2585-1

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Citations (15)

Twofold role of calcined hydrotalcites in the degradation of methyl parathion pesticide

Beilstein Journal of Nanotechnology (2011)

Álvaro Sampieri Geolar Fetter M. E. Villafuerte-Castrejón Adriana Tejeda-Cruz P. Bosch

Methyl parathion (MP) is a very toxic organophosphate pesticide used as a non-systematic insecticide and acaricide on many corps. As MP and its by-products are highly toxic, they have to be retained to avoid pollution of rivers and lakes. Highly efficient sorbents are hydrotalcites (HTs) (or anionic clays). We have correlated the degradation of an aqueous solution of MP at room temperature, with the basicity of the adsorbing materials. It was found that the metal composition of hydrotalcites determines both the surface electronic properties (basic or acidic) and the sorption capacity. Depending on the basic strength, some calcined hydrotalcites can catalyze the transformation of MP to p-nitrophenol (p-NP) and retain its by-products. Such a process has the advantage of being able to be carried out at room temperature and at the pH of the pesticide solution.

Hydrotalcite

Parathion methyl

Degradation

Layered double hydroxides

Pesticide degradation

Parathion

10.3762/bjnano.2.11

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Citations (21)

Study of layered double hydroxides as bactericidal materials against Corynebacterium ammoniagenes, a bacterium responsible for producing bad odors from human urine and skin infections

Applied Clay Science (2019)

Ana María León-Vallejo Franchescoli D. Velázquez-Herrera Álvaro Sampieri Gerardo Landeta‐Cortés Geolar Fetter