Browsing by Author "XX676382"

Now showing items 1-20 of 35

    • A cheap mesoporous silica from fly ash as an outstanding adsorbent for sulfate in water 
      Castillo, Ximena; Pizarro, Jaime; Ortiz, Claudia; Cid, Héctor; Flores Carrasco, Marcos; De Canck, Els; Van Der Voort, Pascal (Elsevier B.V., 2018)
      This research describes the development of a very cheap mesoporous silica material similar to hexagonal mesoporous silica (HMS) and using a silicate extract as precursor. This precursor is obtained from cheap fly ash by ...
    • A surface functionalized with per-(6-amino-6-deoxy)-β-cyclodextrin for potential organic pollutant removal ... 
      Herrera, Bárbara A.; Bruna Larenas, Tamara; Sierpe Bustamante, Rodrigo; Lang Pontony, Erika; Urzúa Acevedo, Marcela; Flores Carrasco, Marcos; Jara Vergara, Paul; Yutronic Sáez, Nicolás (Elsevier, 2020)
      In this work, we present a solid silicon substrate functionalized with modified beta-cyclodextrin monolayers as an optimal surface for organic contaminant uptake. The inclusion and capture of three potential pollutants, ...
    • Adsorption of 2-thiophene curcuminoid molecules on a Au(111) surface 
      Flores Carrasco, Marcos; Cisternas, E.; Mella, A.; Jullian, D.; Núñez Vásquez, Álvaro; Soler Jauma, Mónica (Elsevier, 2018)
      We provide a systematic ab initio study on the adsorption of 2-thiophene curcuminoid (2-thphCCM) molecules on a Au(111) surface. In this work we present the determination of the optimal configuration of a single molecule ...
    • Alkanethiol self-assembled monolayer on copper polycrystalline thin films: influence on resistivity 
      Flores Carrasco, Marcos; Donoso, Sebastián; Ortiz, Magdalena; Acosta, Gabriela; Fernández, Henry (Elsevier, 2018)
      Thin polycrystalline copper films of low surface roughness and low electrical resistivity were deposited by physical vapor deposition onto mica at room temperature and in thicknesses ranging from 10 to 80 nm. The crystalline ...
    • Antibiofouling thin-film composite membranes (TFC) by in situ formation of Cu-(m-phenylenediamine) oligomer complex 
      Rodríguez, B.; Ozturk, D.; Rosales, M.; Flores Carrasco, Marcos; García, A. (Springer, 2018)
      In situ formation of a Cu-(m-phenylenediamine) (Cu-mPD) oligomer complex from copper chloride during the interfacial polymerization process was successfully employed to produce modified thin-film composite reverse osmosis ...
    • As(III) removal from aqueous solution by calcium titanate nanoparticles prepared by the sol gel method 
      Tamayo Calderón, Rocío María; Espinoza González, Rodrigo; Gracia, Francisco; Rodrigues-Filho, Ubirajara Pereira; Flores Carrasco, Marcos; Sacari, Elisban (MDPI AG, 2019)
      Arsenic (As) contamination of water is a serious problem in developing countries. In water streams, arsenic can be as As(V) and As(III), the latter being the most toxic species. In this work, an innovative adsorbent based ...
    • Characterization of ZnS thin films synthesized through a non-toxic precursors chemical bath 
      Rodríguez, C. A.; Sandoval-Paz, M. G.; Cabello, G.; Flores Carrasco, Marcos; Fernández, H.; Carrasco, C. (Elsevier Ltd, 2014)
      ©2014 Elsevier Ltd. All rights reserved.In solar cells, ZnS window layer deposited by chemical bath technique can reach the highest conversion efficiency; however, precursors used in the process normally are materials ...
    • Desarrollo de materiales compuesto de polipropileno y nanoestructuras de carbono 
      Garzón, Cristhian Andrés (Universidad de Chile, 2014)
      La presente tesis doctoral se centra en el desarrollo de compuestos poliméricos de polipropileno (PP) con nanoestructuras de carbono, mediante mezclado en fundido. El interés principal radica en el desarrollo de materiales ...
    • Effect of hazardous bacteria isolated from copper plumbing system on microbiologically influenced corrosion ... 
      Galarce, Carlos; Pineda, Fabiola; Fischer, Diego A.; Flores Carrasco, Marcos; Vargas, Ignacio T.; Sancy, Mamie; Pizarro, Gonzalo E. (Electrochemical Science Group, 2019)
      © 2019 The Authors.Plumbing systems can be affected by Microbiologically Induced Corrosion (MIC). Through this process, microorganisms can modify water quality and jeopardize consumers' health by releasing metal from pipes' ...
    • Estudio morfológico de películas ultra delgadas de oro 
      Bahamondes Moya, Sebastián (Universidad der Chile, 2014)
      Este trabajo analiza la morfología y los mecanismos de crecimiento en películas delgadas de oro sobre mica moscovita. Para lograr esto, se prepararon películas delgadas de oro de 1.5 a 40 nm de espesor nominal, mediante ...
    • Evidence of mixed oxide formation on the Cu/SiO 2 interface 
      Benito, Noelia; Flores Carrasco, Marcos (American Chemical Society, 2017)
      The deposition of Cu onto SiO2 has been carried out by electron beam evaporation in order to study the interface formation by X-ray photoelectron spectroscopy and angle resolved X-ray photoelectron spectroscopy. Shifts in ...
    • Fabricación electroquímica de nanoestructuras de zirconia usando moldes de alúmina nanoporosa 
      Reina González, Nidia Esther (Universidad de Chile, 2015)
      Este trabajo describe la fabricación de nanoestructuras de zirconia usando moldes de alúmina nanoporosa por el método electroquímico proponiendo un mecanismo de crecimiento de las nanoestructuras resultantes a través de ...
    • Formation of self-assembled monolayer of curcuminoid molecules on gold surfaces 
      Berlanga Mora, Isadora; Etcheverry Berríos, Álvaro; Mella, Andy; Jullian, Domingo; Gómez, Victoria Alejandra; Aliaga Alcalde, Núria; Fuenzalida Escobar, Víctor; Flores Carrasco, Marcos; Soler Jauma, Mónica (Elsevier, 2017)
      We investigated the formation of self-assembled monolayers of two thiophene curcuminoid molecules, 2-thphCCM (1) and 3-thphCCM (2), on polycrystalline gold substrates prepared by immersion of the surfaces in a solution of ...
    • Improving the interaction between aluminum surfaces and polymer coatings 
      Muñoz, Lisa; Pineda, Fabiola; Martínez, Carola; Sancy, Mamié; Urzúa Acevedo, Marcela; Flores Carrasco, Marcos; Encinas, María V.; Páez, Maritza A. (Elsevier, 2019)
      To better understand the effect of surface treatments on the efficiency of protective coatings of aluminum alloys, this study assessed different surface treatments for the aluminum alloy AA2024, including mechanical ...
    • Mechanisms of Cu2+ biosorption on Lessonia nigrescens dead biomass: Functional groups interactions and ... 
      Cid, Héctor; Flores Carrasco, Marcos; Pizarro, Jaime; Castillo, Ximena; Barros, Daniel; Moreno-Pirajan, Juan; Ortiz, Claudia (Elsevier, 2018-04)
      In this study, the biosorption mechanisms of Cu2+ by dead biomass of the brown seaweed Lessonia nigrescens were characterized, with special emphasis on the chemical environment provided by functional groups, their interactions ...
    • Moiré patterns on STM images of graphite induced by rotations of surface and subsurface layers 
      Flores Carrasco, Marcos; Cisternas, E.; Correa, J. D.; Vargas, P. (Elsevier B.V., 2013)
      We have observed by means of scanning tunneling microscopy (STM) moiré patterns corresponding to the rotation of one graphene layer on HOPG surface. These moiré patterns were characterized by rotation angle and extension ...
    • Nanostructuring of anodic copper oxides in fluoride-containing ethylene glycol media 
      Oyarzún Jerez, Diego; López Teijelo, Manuel; Ramos Cervantes, Wilkendry; Linarez Pérez, Omar; Sánchez, Julio; Pizarro, Guadalupe del C.; Acosta, Gabriela; Flores Carrasco, Marcos; Arratia Pérez, Ramiro (Elsevier, 2017)
      We demonstrate that the anodization of copper in alkaline water/ethylene glycol media containing fluoride ions generates nanostructured copper oxide films. By modifying the anodization conditions (fluoride and OH– ...
    • Nucleación de cobre por electrodeposición sobre TIO2 [001] 
      Olavarría Contreras, Ignacio José (Universidad de Chile, 2013)
      Este trabajo analiza el problema de la nucleación de cobre en el proceso de electrodepo- sición, la formación de estructuras bi y tridimensionales en la superficie de un sustrato, de manera de determinar las características ...
    • Oxidación de películas delgadas de cobre recubiertas con 1-dodecanotiol 
      Donoso Contreras, Sebastián Andrés (Universidad de Chile, 2015)
      En esta tesis se estudian los procesos de oxidación de películas delgadas de cobre desnudas y recubiertas con 1-dodecanotiol. Mediante microscopía de efecto túnel y microscopía de fuerza atómica se estudió la morfología ...
    • A photochemical proposal for the preparation of ZnAl2O4 and MgAl2O4 thin films from beta-diketonate complex ... 
      Cabello, G.; Lillo, L.; Caro, C.; Seguel, M.; Sandoval, C.; Buono-Core, Gonzalo E.; Chornik Aberbuch, Boris; Flores Carrasco, Marcos (Elsevier, 2016)
      ZnAl2O4 and MgAl2O4 thin films were grown on Si(100) and quartz plate substrates using a photochemical method in the solid phase with thin films of beta-diketonate complexes as the precursors. The films were deposited by ...