A5055380470- Layered Double Hydroxides Synthesis and Applications
- Mesoporous Materials and Catalysis
- Catalysis and Hydrodesulfurization Studies
- Catalytic Processes in Materials Science
- Supercapacitor Materials and Fabrication
- Nanomaterials for catalytic reactions
- Polyoxometalates: Synthesis and Applications
- Clay minerals and soil interactions
- Freezing and Crystallization Processes
- Iron oxide chemistry and applications
- Zeolite Catalysis and Synthesis
- Catalysis and Oxidation Reactions
- Metal-Organic Frameworks: Synthesis and Applications
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Food Drying and Modeling
- Magnesium Oxide Properties and Applications
- Phosphorus and nutrient management
- Thermal Expansion and Ionic Conductivity
- Advanced Control Systems Design
- TiO2 Photocatalysis and Solar Cells
- Fault Detection and Control Systems
- Magnetism in coordination complexes
- Chemical Synthesis and Characterization
- Catalysts for Methane Reforming
Benemérita Universidad Autónoma de Puebla
2012-2023
Universidad de Puebla
2015
Laboratoire de Réactivité de Surface
2005-2009
Centre National de la Recherche Scientifique
2005-2009
Universidad Autónoma Metropolitana
2009
Colegio de Postgraduados
2009
Universidad Nacional Autónoma de México
2005-2009
Sorbonne Université
2009
University of Guelph
2009
University College London
2009
The targeted design and simulation of a new family zeolitic metal-organic frameworks (MOFs) based on benzenedicarboxylate (BDC) as the ligand epsilon-type Keggin polyoxometalates (POMs) building units, named here Z-POMOFs, have been performed. A key feature is use analogy between connectivity silicon in dense minerals zeolites with that POMs capped Zn(II) ions. Handling epsilon-Keggin block, selection 21 zeotype structures, together series were constructed their relative stabilities...
We investigate here a new family of zeolitic Metal Organic Frameworks (MOFs) based on imidazole (im) as the ligand and epsilon-type Keggin PolyOxoMetalates (POMs) building units. The POM used in this study is epsilon-{PMo(12)O(40)} isomer capped by four Zn(ii) ions (noted epsilon-Zn) tetrahedral coordination. describe our methods to first construct then evaluate stability hypothetical 3-D POMOFs possessing network, typified dense silica polymorphs zeotypes referred Z-POMOFs. use analogy...
Methyl parathion (MP) is a very toxic organophosphate pesticide used as non-systematic insecticide and acaricide on many corps. As MP its by-products are highly toxic, they have to be retained avoid pollution of rivers lakes. Highly efficient sorbents hydrotalcites (HTs) (or anionic clays). We correlated the degradation an aqueous solution at room temperature, with basicity adsorbing materials. It was found that metal composition determines both surface electronic properties (basic or...
This work presents two easy ways for preparing nanostructured mesoporous composites by interconnecting and combining SBA-15 with mixed oxides derived from a calcined Mg-Al hydrotalcite. Two different hydrotalcite addition procedures were implemented, either after or during the synthesis (in situ method). The first procedure, i.e., post-synthesis method, produces composite material homogeneously dispersed on nanoporous surface. resulting present textural properties similar to SBA-15. On other...
Microwave irradiated lamellar double hydroxides containing different divalent metals (Mn2+, Zn2+, or Mg2+) were prepared with Al3+ as the trivalent metal. Samples Mn2+ and Zn2+ unstable at 400 °C, leading to formation of mixed oxides spinel phases. Acid−base properties samples characterized by nitromethane CO2 adsorption followed FTIR spectroscopy. Decomposition adsorbed leads isocyanate species that acts probe molecules acid−base sites surface. These determine ability materials retain CO2....
Benzene, toluene, ethylbenzene, and p-xylene (BTEX) are hazardous volatile organic compounds mostly released from fuel combustion, paint gas emissions, biomass burning. In this work, it is studied the BTEX sorption influence on surface reactivity of a new kind nanoporous composite, prepared via an in situ functionalization SBA-15 with Mg-Al calcined hydrotalcite (HTC). During its preparation, Mg/Al mixed oxides indeed formed dispersed non-blockage porosity. Furthermore, physicochemical...
Abstract Ultrasonic-assisted extraction (UAE) was performed to extract the total phenolic compounds from avocado ( Persea americana Mill. var. Drymifolia; Lauraceae) leaves with different electric powers (UAE 0%, UAE 60%, and 100%) times. Ultrasonic parameters were optimized by using a mathematical model made stepwise regression (SWR) for determination of maximum content (TPC) their antioxidant activity. Moreover, TPC modeled applying heterogeneous models elucidate involved mechanisms...
The use of point set registration (PSR) in a novel approach for assisted geometry generation complex-shaped foods during mass transfer modeling osmotic dehydration (OD) is presented. procedure aimed at reducing the effect mismatch estimation diffusion coefficients. PSR based on modified iterated closest (ICP) algorithm. proposed methodology was applied to obtain optimum geometrical parameters describing shape white mushroom pilei (Agaricus bisporus) as revolution solid oblate spheroidal...
Silicon pillared samples were prepared following conventional and microwave irradiation methods. The characterized tested in cobalt sorption. Ethylenediammine was added before addition to improve the amount of retained. introduced original clay presence ethylenediammine highest. In calcined clays retention with lower (ca. 40%). all cases increased twice sorption measured for aqueous solutions.
The electrochemical behavior of synthetic binary, Zn-Al and Mn-Al, ternary (Zn-Mn)-Al hydrotalcites (HT) was studied by cyclic voltammetry in alkaline conditions (pH≡12). HT characterization revealed two irreversible continuous oxidation processes: i) Zn0|Zn2+ ii) Zn0|ZnO. On the other hand, binary containing Mn presented a reversible for oxidation-reduction process Mn4+|Mn3+. same processes were observed HT. However, variations reduction-oxidation detected XRD as result spinel formation....
Iron oxide nanoparticles were prepared by mixing either aged iron(II) or iron(III) hydrated chlorides with hydrogen peroxide at pH 4.2±0.1. identified in the mixtures of iron(II/III) transmission electron microscopy (TEM) analyses. TEM analyses showed irregular sizes and formation different phases iron (α-Fe2O3, β-Fe2O3, γ-Fe2O3, -Fe2O3…). The variety was a consequence interactions ferric oligomers oxohydroxides formed during aging chloride mixtures. In order to decompose phenol...
Iron oxide nanoparticles were prepared by mixing either aged iron(II) or iron(III) hydrated chlorides with hydrogen peroxide at pH 4.2±0.1. identified in the mixtures of iron(II/III) transmission electron microscopy (TEM) analyses. TEM analyses showed irregular sizes and formation different phases iron (α-Fe2O3, β-Fe2O3, γ-Fe2O3, -Fe2O3…). The variety was a consequence interactions ferric oligomers oxohydroxides formed during aging chloride mixtures. In order to decompose phenol...