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    Development of novel catalytically active polymer-metal-nanocomposites based on activated foams and textile fibers  Open access

     Domènech Garcia, Berta; Ziegler, Kharla; Carrillo Navarrete, Fernando; Muñoz Tapia, Maria; Muraviev, Dmitri N.; Macanás de Benito, Jorge
    Nanoscale research letters
    Date of publication: 2013
    Journal article

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    In this paper, we report the intermatrix synthesis of Ag nanoparticles in different polymeric matrices such as polyurethane foams and polyacrylonitrile or polyamide fibers. To apply this technique, the polymer must bear functional groups able to bind and retain the nanoparticle ion precursors while ions should diffuse through the matrix. Taking into account the nature of some of the chosen matrices, it was essential to try to activate the support material to obtain an acceptable value of ion exchange capacity. To evaluate the catalytic activity of the developed nanocomposites, a model catalytic reaction was carried out in batch experiments: the reduction of pnitrophenol by sodium borohydride

  • Polymer-silver nanocomposites as antibacterial materials

     Domènech Garcia, Berta; Muñoz Tapia, Maria; Muraviev, Dmitri N.; Macanás de Benito, Jorge
    Date of publication: 2013-12-01
    Book chapter

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  • Nanocomposite materials for catalytic membranes development

     Domènech Garcia, Berta; Muñoz Tapia, Maria; Muraviev, Dmitri N.; Macanás de Benito, Jorge
    Date of publication: 2013
    Book chapter

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  • Chicken feathers based biocomposites: a new sustainable product?

     Molins Duran, Gemma; Alvarez Del Castillo, M. Dolores; Garrido Soriano, Nuria; Macanás de Benito, Jorge; Carrillo Navarrete, Fernando
    LCA Conference
    Presentation's date: 2013-11-05
    Presentation of work at congresses

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    Plastic composites are made of polymers and different reinforcements that originally were synthetic and non-biodegradable. Since 1990¿s, many biodegradable composites, formed by a biodegradable matrix and natural fibers, have been proposed. In spite of the advantages of biocomposites, it is important to ponder the technical drawbacks of these natural fibers, mainly from a vegetable origin, and their environmental impacts (EIs). Vegetable fibers imply a land use that can compete with food production. Chicken feathers (CFs), made of keratin fibers, are a potential alternative as they are a waste material, produced in large quantities (800,000 ton/year in EU-27), do not compete with human food production and have been scarcely used up to now. Taking on board these premises, a biocomposite made of PLA and CFs was fabricated at lab-scale as new material. However, before using CFs as reinforcement, sanitizing pretreatments have been envisaged before, due to their quick decay. The EIs of these treatments were experimentally quantified and a cradle-to-gate Life Cycle Assessment (LCA) was performed to evaluate altogether the impacts of manufacturing a technical panel with different content of CFs (up to 35% v/v). As main results, the avoided burdens of the CF waste treatment and the energy consumption for the drying step must be optimized to achieve lower EIs for the preparation of CFs/PLA composites

  • Superparamagnetic Ag@Co-nanocomposites on granulated cation exchange polymeric matrices with enhanced antibacterial activity for the environmentally safe purification of water

     Alonso González, Amanda; Muñoz Berbel, Xavier; Vigués, Núria; Rodríguez Rodríguez, Rosalía; Macanás de Benito, Jorge; Muñoz Tapia, Maria; Mas López, Jordi; Muraviev, Dmitri N.
    Advanced functional materials
    Date of publication: 2013-05
    Journal article

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    Cation exchange polymeric matrices are widely used in water treatment protocols to reduce the mineral content of hard waters, even for human consumption. However, they are not antibacterial and flowing bacteria can be trapped in their structures and proliferate, thus acting as microbial contamination sources. Here, Ag@Co-nanoparticles (Ag@Co-NPs) with a low-cost superparamagnetic Co0-core and an antibacterial Ag-shell are synthesized on granulated cation exchange polymeric matrices under soft reaction conditions. The presence of these NPs provides the final nanocomposite (NC) with additional functionalities (superparamagnetism and antibacterial activity) making it ideal for water purification applications. Ag@Co-NPs are synthesized in situ on four cation exchange polymeric matrices containing either strong (sulfonic) or weak (carboxylic) acid functional groups homogeneously distributed (C-type) or concentrated on an external shell (SST-type) by the intermatrix synthesis (IMS) method. The NCs are characterized (metal content, NP size and distribution, metal oxidative state, and metal release) and evaluated for water purification applications.

    Cation exchange polymeric matrices are widely used in water treatment protocols to reduce the mineral content of hard waters, even for human consumption. However, they are not antibacterial and flowing bacteria can be trapped in their structures and proliferate, thus acting as microbial contamination sources. Here, Ag@Co-nanoparticles (Ag@Co-NPs) with a low-cost superparamagnetic Co0-core and an antibacterial Ag-shell are synthesized on granulated cation exchange polymeric matrices under soft reaction conditions. The presence of these NPs provides the final nanocomposite (NC) with additional functionalities (superparamagnetism and antibacterial activity) making it ideal for water purification applications. Ag@Co-NPs are synthesized in situ on four cation exchange polymeric matrices containing either strong (sulfonic) or weak (carboxylic) acid functional groups homogeneously distributed (C-type) or concentrated on an external shell (SST-type) by the intermatrix synthesis (IMS) method. The NCs are characterized (metal content, NP size and distribution, metal oxidative state, and metal release) and evaluated for water purification applications.

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    Bifunctional polymer-metal nanocomposite ion exchange materials  Open access

     Domènech Garcia, Berta; Bastos Arrieta, Julio; Alonso González, Amanda; Macanás de Benito, Jorge; Muñoz Tapia, Maria; Muraviev, Dmitri N.
    Date of publication: 2012
    Book chapter

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    Ecologically friendly polymer-metal and polymer-metal oxide nanocomposites for complex water treatment  Open access

     Alonso González, Amanda; Bastos Arrieta, Julio; Davies, Gemma L.; Gun'ko, Yuri K.; Vigués, Núria; Muñoz Berbel, Xavier; Macanás de Benito, Jorge; Mas Gordi, Jordi; Muñoz Tapia, Maria; Muraviev, Dmitri N.
    Date of publication: 2012
    Book chapter

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  • Use of chicken feathers waste for the fabrication of composite materials

     Carrillo Navarrete, Fernando; Macanás de Benito, Jorge; Colom Fajula, Xavier; Cañavate Avila, Francisco Javier; Molins Duran, Gemma; Alvarez Del Castillo, M. Dolores; Garrido Soriano, Nuria
    European Conference on Composite Materials
    Presentation's date: 2012-06-26
    Presentation of work at congresses

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  • Chicken feathers based composites: a life cycle assessment

     Molins Duran, Gemma; Alvarez Del Castillo, M. Dolores; Garrido Soriano, Nuria; Macanás de Benito, Jorge; Carrillo Navarrete, Fernando
    European Conference on Composite Materials
    Presentation's date: 2012-06-25
    Presentation of work at congresses

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  • Chicken feathers based composites: a life cycle assessment

     Molins Duran, Gemma; Alvarez Del Castillo, M. Dolores; Garrido Soriano, Nuria; Macanás de Benito, Jorge; Carrillo Navarrete, Fernando
    European Conference on Composite Materials
    Presentation's date: 2012-06-25
    Presentation of work at congresses

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  • Characterization of fibrous polymer silver/cobalt nanocomposite with enhanced bactericide activity

     Alonso González, Amanda; Muñoz Berbel, Xavier; Vigués, Núria; Macanás de Benito, Jorge; Muñoz Tapia, Maria; Mas i Gordi, Jordi; Muraviev, Dmitri N.
    Langmuir
    Date of publication: 2012
    Journal article

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    This manuscript describes the synthesis (based on the intermatrix synthesis (IMS) method), optimization, and application to bacterial disinfection of Ag@Co polymer metal nanocomposite materials with magnetic and bactericidal properties. This material showed ideal bactericide features for being applied to bacterial disinfection of water, particularly (1) an enhanced bactericidal activity (when compared with other nanocomposites only containing Ag or Co nanoparticles), with a cell viability close to 0% for bacterial suspensions with an initial concentration below 105 colony forming units per milliliter (CFU/mL) after a single pass through the material, (2) capacity of killing a wide range of bacterial types (from coliforms to Grampositive bacteria), and (3) a long performance-time, with an efficiency of 100% (0% viability) up to 1 h of operation and higher than 90% during the first 24 h of continuous operation. The nanocomposite also showed a good performance when applied to water samples from natural sources with more complex matrices with efficiencies always higher than 80%.

  • Intermatrix synthesis of monometallic and magnetic metal/metal oxide nanoparticles with bactericidal activity on anionic exchange polymers

     Alonso González, Amanda; Muñoz Berbel, Xavier; Vigués, Núria; Rodríguez Rodríguez, Rosalía; Macanás de Benito, Jorge; Mas Gordi, Jordi; Muñoz Tapia, Maria; Muraviev, Dmitri N.
    RSC Advances
    Date of publication: 2012-03-28
    Journal article

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    In this communication, the synthesis of nanoparticles on anionic exchange polymers by the Intermatrix Synthesis method is reported. Monometallic (Ag) and core–shell metal/metal oxide (Ag@Fe3O4) nanocomposites were synthesized and characterized. Their magnetic and bactericidal activities were evaluated

  • Nanocomposite membranes with Pd and Ag nanoparticles: a new material for catalytic membranes development

     Domènech Garcia, Berta; Muñoz Tapia, Maria; Muraviev, Dmitri N.; Macanás de Benito, Jorge
    Procedia engineering
    Date of publication: 2012-11-07
    Journal article

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  • Recyclable polymer-stabilized nanocatalysts with enhanced accessibility for reactants

     Alonso González, Amanda; Shafir, Alexandr; Macanás de Benito, Jorge; Vallribera Massó, Adelina; Muñoz Tapia, Maria; Muraviev, Dmitri N.
    Catalysis today
    Date of publication: 2012-10-15
    Journal article

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  • TNT2012 Poster Awards. Prizes to the best poster presented by Ph.D. Students

     Domènech Garcia, Berta; Ziegler, Kharla; Macanás de Benito, Jorge; Carrillo Navarrete, Fernando; Muñoz Tapia, Maria; Muraviev, Dmitri N.
    Award or recognition

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  • Best poster presentation Euromembrane 2012

     Domènech Garcia, Berta; Muñoz Tapia, Maria; Muraviev, Dmitri N.; Macanás de Benito, Jorge
    Award or recognition

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  • Wiley student poster award IEX2012

     Bastos Arrieta, Julio; Alonso González, Amanda; Macanás de Benito, Jorge; Muñoz Tapia, Maria; Muraviev, Dmitri N.
    Award or recognition

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  • FeatherTech: development of an innovative technology for the valorisation of feather waste into a new resource material

     Carrillo Navarrete, Fernando; Tornero Garcia, Jose Antonio; Macanás de Benito, Jorge; Domenech Trujillo, Maria Carmen
    Date: 2012-10-16
    Report

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  • Catalytic membranes with palladium nanoparticles: from tailored polymer to catalytic applications

     Domènech Garcia, Berta; Muñoz Tapia, Maria; Muraviev, Dmitri N.; Macanás de Benito, Jorge
    Catalysis today
    Date of publication: 2012-10-15
    Journal article

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  • Donnan exclusion driven intermatrix synthesis of reusable polymer stabilized palladium nanocatalysts

     Bastos Arrieta, Julio; Shafir, Alexandr; Alonso González, Amanda; Muñoz Tapia, Maria; Macanás de Benito, Jorge; Muraviev, Dmitri N.
    Catalysis today
    Date of publication: 2012-02-15
    Journal article

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  • Filtration membrane loaded with metallic nanoparticle for catalytic reduction reaction of organic compounds

     Emin, Clelia; Macanás de Benito, Jorge; Lahitte, Jean-François
    Congrés de la Société Française de Génie des Procédés
    Presentation's date: 2011-12-01
    Presentation of work at congresses

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  • Environmentally-safe bimetallic Ag@Co magnetic nanocomposites with antimicrobial activity

     Alonso González, Amanda; Vigués, Núria; Muñoz Berbel, Xavier; Macanás de Benito, Jorge; Muñoz Tapia, Maria; Mas Gordi, Jordi; Muraviev, Dmitri N.
    Chemical communications
    Date of publication: 2011-08-02
    Journal article

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  • Intermatrix synthesis: easy technique permitting preparation of polymer-stabilized nanoparticles with desired composition and structure

     Ruiz Nicolás, Patricia; Macanás de Benito, Jorge; Muñoz Tapia, Maria; Muraviev, Dmitri N.
    Nanoscale research letters
    Date of publication: 2011-04
    Journal article

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    Polymer-stabilized palladium nanoparticles for catalytic membranes: ad hoc polymer fabrication  Open access

     Domènech Garcia, Berta; Muñoz Tapia, Maria; Muraviev, Dmitri N.; Macanás de Benito, Jorge
    Nanoscale research letters
    Date of publication: 2011-06-01
    Journal article

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    Metal nanoparticles are known as highly effective catalysts although their immobilization on solid supports is frequently required to prevent aggregation and to facilitate the catalyst application, recovery, and reuse. This paper reports the intermatrix synthesis of Pd0 nanoparticles in sulfonated polyethersulfone with Cardo group membranes and their use as nanocomposite catalytic membrane reactors. The synthesized polymer and the corresponding nanocomposite were characterized by spectroscopic and microscopic techniques. The catalytic efficiency of catalytic membranes was evaluated by following the reduction of p-nitrophenol in the presence of NaBH4.

  • Ion exchange-assisted synthesis of polymer stabilized metal nanoparticles

     Macanás de Benito, Jorge; Ruiz Nicolás, Patricia; Alonso González, Amanda; Muñoz Tapia, Maria; Muraviev, Dmitri N.
    Date of publication: 2011
    Book chapter

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  • Environmentally-safe catalytically active and biocide polymer-metal nanocomposites with enhanced structural parameters

     Alonso González, Amanda; Macanás de Benito, Jorge; Davies, Gemma L.; Gun'ko, Yuri K.; Muñoz Tapia, Maria; Muraviev, Dmitri N.
    Date of publication: 2011
    Book chapter

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  • APROVECHAMIENTO RESIDUOS QUERATINICOS COMO FIBRAS REFUERZO BIODEGRADABLES OBTENCION MATERIALES COMPUESTOS RESPETUOSOS MEDIO AMBIENTE

     Colom Fajula, Xavier; Cañavate Avila, Francisco Javier; Alvarez Del Castillo, M. Dolores; Molins Duran, Gemma; Garrido Soriano, Nuria; Macanás de Benito, Jorge; Carrillo Navarrete, Fernando
    Participation in a competitive project

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  • ReChichenTech: Developmet of a technological solutions to valorize and exploit waste resources from chicken meat processing plants

     Carrillo Navarrete, Fernando; Tornero Garcia, Jose Antonio; Domenech Trujillo, Maria Carmen; Macanás de Benito, Jorge
    Date: 2011-10-20
    Report

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  • LA QUÍMICA i la societat

     Grau Vilalta, Maria Dolors; Font Soldevila, Jose; Sanz Balague, Joaquim; Guaus Guerrero, Ester; Calvet Tarragona, Aurelio; Salán Ballesteros, Mª Núria; Martínez Martínez, María R.; Farran Marsa, Adriana; Gorchs Altarriba, Roser; Alvarez Del Castillo, M. Dolores; Garrido Soriano, Nuria; Morillo Cazorla, Margarita; Almajano Pablos, Maria Pilar; Cardona Planes, Anna Maria; Macanás de Benito, Jorge; Bonsfills Pedros, Ana; Gamisans Noguera, Javier; Dorado Castaño, Antonio David; Lao Luque, Concepcion; Torrent Burgues, Juan; Molins Duran, Gemma; Colom Fajula, Xavier; Carrillo Navarrete, Fernando; Ramon Portés, Eva; Garriga Sole, Pere; Sole Sardans, M. Montserrat; Ardanuy Raso, Monica; Pares Sabates, Ferran; Roncero Vivero, Maria Blanca; Cusola Aumedes, Oriol
    Collaboration in exhibitions

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  • Hydrogen generation by aluminum corrosion in aqueous alkaline solutions of inorganic promoters: the Alhidrox process

     Macanás de Benito, Jorge; Soler Turu, Lluis; Candela Soto, Angélica Maria; Muñoz Tapia, Maria; Casado Giménez, Juan
    Energy
    Date of publication: 2011-05
    Journal article

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    The research of alternative processes to obtain clean fuels has become a main issue because of the concerns related to the current energy system, both from economical and environmental points of view. Hydrogen storage and production methods are being investigated for stationary and portable applications. Up to now, a significant part of H2 production on demand was thought to be fulfilled by using chemical hydrides, but recent studies have proved the limitations of this approach. Conversely, H2 production based in the corrosion of light metals in water solutions is an interesting alternative. Among all of them, Al is probably the most adequate metal for energetic purposes due to its high electron density and oxidation potential. But concerning H2 production from Al corrosion in water, a major issue remains unsolved: metal passivation due to the formation of Al(OH)3 inhibits H2 evolution. In this work we show the last results obtained for the generation of H2 from water using Al powder using diverse alkaline solutions. It is confirmed that corrosion is not affected solely by the solution pH but also by the nature of the ionic species found in the aqueous medium. Moreover, we describe the AlHidrox process, which minimizes Al passivation under mild conditions by the addition of different inorganic salts as corrosion promoters, allowing 100% yields and flow rates up to 2.9 L/min per gram of Al. The feasibility of the process has been regarded in terms of stability (by conducting several successive runs) and selfinitiation without an external heating.

  • Intermatrix synthesis of polymer-stabilized PGM@Cu core¿shell nanoparticles with enhanced electrocatalytic properties

     Ruiz Nicolás, Patricia; Muñoz Tapia, Maria; Macanás de Benito, Jorge; Muraviev, Dmitri N.
    Reactive and functional polymers
    Date of publication: 2011-05-27
    Journal article

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    This paper is dedicated to the further development of the Intermatrix synthesis (IMS) technique, which permits to produce a wide variety of polymer–metal nanocomposites (PMNCs) containing monometallic or bimetallic catalytically active polymer-stabilized nanoparticles (PSNPs) with the most favourable distribution of nanocatalysts inside the polymer, which is achieved by the purposeful application of the Donnan exclusion effect in the course of IMS. PMNCs containing low cost Cu-PSNPs can be used as an active element in construction of amperometric sensors for H2O2 detection. But, due to the high trend of copper nanoparticles (Cu-NPs) for oxidation under measurement conditions (in buffer solution) the sensors rapidly loose their sensitivity. The coating of Cu-NPs with platinum group metal-shell (PGMshell) of the minimal thickness results in the protection of Cu core against oxidation while maintaining the sensitivity of core–shell NP-modified sensors at sufficiently high level. The sensitivity of the sensors in the last case enhances when applying the step-wise formation of PGM-shell of higher purity by excluding the shell contamination with core-metal.

  • Intermatrix synthesis of polymer-copper nanocomposites with tunable parameters by using copper comproportionation reaction

     Ruiz Nicolás, Patricia; Muñoz Tapia, Maria; Macanás de Benito, Jorge; Muraviev, Dmitri N.
    Chemistry of materials
    Date of publication: 2010-12-06
    Journal article

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    This paper describes the synthesis of copper nanoparticles (NPs) inside sulfonated polyetherether ketone (SPEEK) membranes, which serve both as reaction media for intermatrix synthesis (IMS) of Cu-NPs and as stabilizing matrices, preventing NPs aggregation and uncontrollable growth. The IMS technique involves the loading of the functional groups of the polymer with metal ions followed by their reduction inside the polymeric matrix. It has been shown that the repetitive metal loadingreduction cycle, in the case of copper, is accompanied by comproportionation reaction between Cu0 and Cu2+, leading to the formation of Cu +ions. This, in turn, allows for doubling the NPs content in the SPEEK matrix along with the tuning of Cu-NPs size.