Now showing items 1-11 of 11

    • Azo-dye degradation by Mn–Al powders 

      Abolighasemabadi, Mitra; Mbarek Wael, Ben; Cerrillo Gil, Andrea; Roca Bisbe, Helena; Casabella, Oriol; Blánquez, Paqui; Pineda Soler, Eloi; Escoda, Lluïsa; Suñol Martinez, Juan Jose (2020-03-15)
      Article
      Open Access
      Manganese–Aluminum powders were recently reported to show high efficiency and fast reaction rates as decolorization materials for azo-dye aqueous solutions. This work presents a detailed study of different aspects of this ...
    • Dealloying of Cu-Mg-Ca alloys 

      Mbarek Wael, Ben; Pineda Soler, Eloi; Escoda, Lluïsa; Suñol Martinez, Juan Jose; Khitouni, Mohamed (Multidisciplinary Digital Publishing Institute (MDPI), 2018-11-08)
      Article
      Open Access
      The chemical dealloying of Cu-Mg-Ca alloys in free corrosion conditions was investigated for different alloy compositions and different leaching solutions. For some of the precursor alloys, a continuous, pure fcc copper ...
    • Degradation of azo dyes by rapidly solidified metallic particles 

      Mbarek Wael, Ben; Pineda Soler, Eloi; Khitouni, Mohamed; Fiol Santalo, Núria; Escoda, Lluïsa; Suñol Martinez, Juan Jose (2015)
      Conference lecture
      Open Access
      Azo compounds are one of the most common families of dyes used in textile and leather treatments. An important step during the treatment of water polluted by these compounds, is the degradation of the compounds by ...
    • High efficiency decolorization of azo dye Reactive Black 5 by Ca-Al particles 

      Mbarek Wael, Ben; Pineda Soler, Eloi; Escoda, Lluïsa; Suñol Martinez, Juan Jose; Khitouni, Mohamed (2017-12-01)
      Article
      Open Access
      This work studies the degradation of azo dye Reactive Black 5 by Ca-Al metallic particles prepared by melt-spinning and ball-milling. The morphology and the phase structure of the metallic powders were characterized and ...
    • Influence of a magnetic field applied during the quenching process on the spin density and nanoscale structure of an amorphous Fe-B ribbon 

      Bonastre, J.; Suñol Martinez, Juan Jose; Bruna Escuer, Pere; Sato, K.; Santos, J.D.; Hernando, B. (2012-11-15)
      Article
      Restricted access - publisher's policy
      The application of a magnetic field to the melt in the transverse direction of the wheel rotation during the solidification process induces magnetic anisotropy in amorphous magnetic ribbons. This procedure is here applied ...
    • Nanomaterials as a sustainable choice for treating wastewater: a review 

      Mbarek, Wael Ben; Escoda Acero, Maria Lluïsa; Saurina Canals, Joan; Pineda Soler, Eloi; Alminderej, Fahad M.; Khitouni, Mohamed; Suñol Martinez, Juan Jose (Multidisciplinary Digital Publishing Institute (MDPI), 2022-12-01)
      Article
      Open Access
      The removal of dyes from textile effluents utilizing advanced wastewater treatment methods with high efficiency and low cost has received substantial attention due to the rise in pollutants in water. The purpose of this ...
    • Rapid degradation of azo-dye using Mn-Al powders produced by ball-milling 

      Mbarek Wael, Ben; Azabou, M.; Pineda Soler, Eloi; Fiol Santalo, Núria; Escoda, Lluïsa; Suñol Martinez, Juan Jose; Khitouni, Mohamed (2017-01-01)
      Article
      Open Access
      This study was conducted on the reduction reaction of the azo dye Reactive Black 5 by means of the Mn85Al15 particles prepared by melt-spinning and ball-milling processes. The morphology, the surface elementary composition ...
    • Removal of reactive black 5 azo dye from aqueous solutions by a combination of reduction and natural adsorbents processes 

      Mbarek, Wael Ben; Daza Collier, Jason; Escoda Acero, Maria Lluïsa; Fiol Santalo, Núria; Pineda Soler, Eloi; Khitouni, Mohamed; Suñol Martinez, Juan Jose (Multidisciplinary Digital Publishing Institute (MDPI), 2023-02-24)
      Article
      Open Access
      In this study, a combined process of reduction and adsorption for the degradation of azo dye with nanocrystalline Fe80Si10B10 powder as a reducing agent is analyzed. A mechanical alloying technique produced the powdered ...
    • Structure and Mössbauer analysis of melt-spun Fe-Pd ribbons containing Ni and Co 

      Rekik, Hanen; Chemingi, Mahmoud; Bachaga, Tarek; Cherif, Amal; Bruna Escuer, Pere; Suñol Martinez, Juan Jose; Khitouni, Mohamed (2015-06-05)
      Article
      Open Access
      Fe68.45Pd28.21Co1.66Ni1.66 alloy in ribbon geometry was produced by melt spinning. The microstructure of the samples was examined using scanning electron microscopy. The structural identification of the as-spun ribbon ...
    • Thermal and structural study of nanocrystalline Fe(Co)NiZrB alloys prepared by mechanical alloying 

      Gonzalez, A; Escoda, L; Suñol Martinez, Juan Jose; Shao, G.; Arcondo, B.; Bruna Escuer, Pere (2010-01)
      Article
      Restricted access - publisher's policy
      Three nanocrystalline alloys, Fe75-xCox(Ni70 Zr30)15B10 (x = 0, 10, and 20), were synthesized from elemental powders in a planetary high-energy ball mill. Their microstructure, magnetic properties, and thermal stability were ...
    • Thermal stability of ultrafine grains size of pure copper obtained by equal-channel angular pressing 

      Lugo Chacón, Nayar Adolfo; Llorca, N.; Suñol Martinez, Juan Jose; Cabrera Marrero, José M. (2010-05)
      Article
      Restricted access - publisher's policy
      Ultrafine grain of pure copper 99.98% was produced by severe plastic deformation using the equalchannel angular pressing (ECAP) method. Copper samples were ECAPed from 1 to 8 passes following route BC; fine grain sizes ...