Navegação Ciências Exatas e da Terra por Assunto "Nanotubos de carbono"

Resultados 1-7 de 7

    • Adsorption of alizarin red s dye by carbon nanotubes : experimental and theoretical investigation 

      Machado, Fernando Machado; Ayyappan, Sophia Carmalin; Lima, Éder Cláudio; Dias, Silvio Luis Pereira; Prola, Liziê Daniela Tentler; Saucier, Caroline; Jauris, Iuri Medeiros; Silva, Ivana Zanella da; Fagan, Solange Binoto (2016) [Artigo de periódico]
      This study evaluated the feasibility of removing Alizarin Red S dye (ARS) from aqueous solutions, using nanoadsorbents such as single and multiwalled carbon nanotubes (SWCNT and MWCNT, respectively). The effect of pH, ...

    • Adsorption of a textile dye from aqueous solutions by carbon nanotubes 

      Machado, Fernando Machado; Bergmann, Carlos Perez; Lima, Éder Cláudio; Adebayo, Matthew Ayorinde; Fagan, Solange Binoto (2014) [Artigo de periódico]
      Multi-walled and single-walled carbon nanotubes were used as adsorbents for the removal of Reactive Blue 4 textile dye from aqueous solutions. The adsorbents were characterised using Raman spectroscopy, N2 adsorption/desorption ...

    • Agglomeration defects on irradiated carbon nanotubes 

      Moura, Cassio Stein; Balzaretti, Naira Maria; Amaral, Livio; Lacerda, Rodrigo Gribel; Pimenta, Marcos A. (2012) [Artigo de periódico]
      Aligned carbon nanotubes (CNT) were irradiated in the longitudinal and perpendicular directions, with low energy carbon and helium ions in order to observe the formation of defects in the atomic structure. Analysis through ...

    • Comparação entre nanocompósitos de polietileno/nanotubos de carbono e polietileno/nanolâminas de grafeno obtidos por polimerização in situ 

      Fim, Fabiana de Carvalho; Radaelli, Gislaine; Azambuja, Denise Schermann; Galland, Griselda Ligia Barrera (2014) [Artigo de periódico]
      Nanocompósitos de polietileno/nanotubos de carbono foram sintetizados através da polimerização in situ para serem comparados com nanocompósitos de polietileno/nanolâminas de grafeno, obtidos nas mesmas condições. Os ...

    • Resonance Raman spectroscopy in Si and C ion-implanted double-wall carbon nanotubes 

      Saraiva, Gilberto Dantas; Souza Filho, Antonio Gomes; Barros, Eduardo Bedê; Mendes Filho, Josué; Moreira, Eduardo Ceretta; Fagan, Solange Binoto; Baptista, Daniel Lorscheitter; Kim, Yoong Ahm; Muramatsu, Hiroyuki; Endo, Morinobu; Dresselhaus, M. S. (2009) [Artigo de periódico]
      The effect of 170 keV Si and 100 keV C ion bombardment on the structure and properties of highly pure, double-wall carbon nanotubes has been investigated using resonance Raman spectroscopy. The implantations were performed ...

    • Water diffusion in carbon nanotubes : Interplay between confinement, surface deformation, and temperature 

      Mendonça, Bruno Henrique da Silva e; Ternes, Patrícia; Torres, Evy Augusto Salcedo; Oliveira, Alan Barros de; Barbosa, Marcia Cristina Bernardes (2020) [Artigo de periódico]
      In this article, we investigate, through molecular dynamics simulations, the diffusion behavior of the TIP4P/2005 water confined in pristine and deformed carbon nanotubes (armchair and zigzag). To analyze different diffusive ...

    • Water diffusion in rough carbon nanotubes 

      Mendonça, Bruno Henrique da Silva e; Ternes, Patrícia; Torres, Evy Augusto Salcedo; Oliveira, Alan Barros de; Barbosa, Marcia Cristina Bernardes (2020) [Artigo de periódico]
      We use molecular dynamics simulations to study the diffusion of water inside deformed carbon nanotubes with different degrees of deformation at 300 K. We found that the number of hydrogen bonds that water forms depends on ...