REPOSITORIO
INSTITUCIONAL

    • español
    • English
  • Navegar
  • español 
    • español
    • English
  • Acceder
  • Artículos(current)
  • Libros
  • Tesis
  • Trabajos de grado
  • Documentos Institucionales
    • Actas
    • Acuerdos
    • Decretos
    • Resoluciones
  • Multimedia
  • Productos de investigación
  • Acerca de
Ver ítem 
  •   Inicio
  • Artículos
  • Indexados Scopus
  • Ver ítem
  •   Inicio
  • Artículos
  • Indexados Scopus
  • Ver ítem
JavaScript is disabled for your browser. Some features of this site may not work without it.

Dry-co-grinding of doped TiO2 with nitrogen, silicon or selenium for enhanced photocatalytic activity under UV/visible and visible light irradiation for environmental applications

Thumbnail
Compartir este ítem
Autor
Galeano L.
Valencia S.
Restrepo G.
Marín J.M.

Citación

       
TY - GEN T1 - Dry-co-grinding of doped TiO2 with nitrogen, silicon or selenium for enhanced photocatalytic activity under UV/visible and visible light irradiation for environmental applications AU - Galeano L. AU - Valencia S. AU - Restrepo G. AU - Marín J.M. UR - http://hdl.handle.net/11407/6067 PB - Elsevier Ltd AB - TiO2 doped with nitrogen (N), silicon (Si), or selenium (Se) (N-TiO2, Si-TiO2, and Se-TiO2) were obtained by the integrated sol-gel and solvothermal method with short time of crystallization and low temperature. The UV/visible and visible light absorption and photocatalytic activity of these doped TiO2 materials were improved by a dry-co-grinding process with a short grinding time and low rotational speed (30 min at 200 rpm) to obtain N-TiO2/Si-TiO2 and N-TiO2/Se-TiO2 catalysts. The materials were characterized by XRD, Raman, BET surface area and porosity, XRF, SEM, TEM, FTIR-ATR, and UV/vis-DRS analyses. The photocatalytic activity of these materials was evaluated by the degradation of phenol under UV/visible and visible light irradiation. The integrated sol-gel and solvothermal methods with short time of crystallization (2 h) and low temperature (225 °C), and the dry-co-grinding process during 30 min at 200 rpm led to materials (N-TiO2/Si-TiO2 and N-TiO2/Se-TiO2) with higher specific surface area, a reduction in the band gap value, and an enhancement of the absorption in the visible light spectrum. Moreover, N-TiO2/Si-TiO2 and N-TiO2/Se-TiO2 exhibited higher photocatalytic activities for degradation of phenol under UV/visible and visible light irradiation than those obtained with the doped TiO2, synthesized TiO2 or TiO2 P25. © 2018 Elsevier Ltd ER - @misc{11407_6067, author = {Galeano L. and Valencia S. and Restrepo G. and Marín J.M.}, title = {Dry-co-grinding of doped TiO2 with nitrogen, silicon or selenium for enhanced photocatalytic activity under UV/visible and visible light irradiation for environmental applications}, year = {}, abstract = {TiO2 doped with nitrogen (N), silicon (Si), or selenium (Se) (N-TiO2, Si-TiO2, and Se-TiO2) were obtained by the integrated sol-gel and solvothermal method with short time of crystallization and low temperature. The UV/visible and visible light absorption and photocatalytic activity of these doped TiO2 materials were improved by a dry-co-grinding process with a short grinding time and low rotational speed (30 min at 200 rpm) to obtain N-TiO2/Si-TiO2 and N-TiO2/Se-TiO2 catalysts. The materials were characterized by XRD, Raman, BET surface area and porosity, XRF, SEM, TEM, FTIR-ATR, and UV/vis-DRS analyses. The photocatalytic activity of these materials was evaluated by the degradation of phenol under UV/visible and visible light irradiation. The integrated sol-gel and solvothermal methods with short time of crystallization (2 h) and low temperature (225 °C), and the dry-co-grinding process during 30 min at 200 rpm led to materials (N-TiO2/Si-TiO2 and N-TiO2/Se-TiO2) with higher specific surface area, a reduction in the band gap value, and an enhancement of the absorption in the visible light spectrum. Moreover, N-TiO2/Si-TiO2 and N-TiO2/Se-TiO2 exhibited higher photocatalytic activities for degradation of phenol under UV/visible and visible light irradiation than those obtained with the doped TiO2, synthesized TiO2 or TiO2 P25. © 2018 Elsevier Ltd}, url = {http://hdl.handle.net/11407/6067} }RT Generic T1 Dry-co-grinding of doped TiO2 with nitrogen, silicon or selenium for enhanced photocatalytic activity under UV/visible and visible light irradiation for environmental applications A1 Galeano L. A1 Valencia S. A1 Restrepo G. A1 Marín J.M. LK http://hdl.handle.net/11407/6067 PB Elsevier Ltd AB TiO2 doped with nitrogen (N), silicon (Si), or selenium (Se) (N-TiO2, Si-TiO2, and Se-TiO2) were obtained by the integrated sol-gel and solvothermal method with short time of crystallization and low temperature. The UV/visible and visible light absorption and photocatalytic activity of these doped TiO2 materials were improved by a dry-co-grinding process with a short grinding time and low rotational speed (30 min at 200 rpm) to obtain N-TiO2/Si-TiO2 and N-TiO2/Se-TiO2 catalysts. The materials were characterized by XRD, Raman, BET surface area and porosity, XRF, SEM, TEM, FTIR-ATR, and UV/vis-DRS analyses. The photocatalytic activity of these materials was evaluated by the degradation of phenol under UV/visible and visible light irradiation. The integrated sol-gel and solvothermal methods with short time of crystallization (2 h) and low temperature (225 °C), and the dry-co-grinding process during 30 min at 200 rpm led to materials (N-TiO2/Si-TiO2 and N-TiO2/Se-TiO2) with higher specific surface area, a reduction in the band gap value, and an enhancement of the absorption in the visible light spectrum. Moreover, N-TiO2/Si-TiO2 and N-TiO2/Se-TiO2 exhibited higher photocatalytic activities for degradation of phenol under UV/visible and visible light irradiation than those obtained with the doped TiO2, synthesized TiO2 or TiO2 P25. © 2018 Elsevier Ltd OL Spanish (121)
Gestores bibliográficos
Refworks
Zotero
BibTeX
CiteULike
Metadatos
Mostrar el registro completo del ítem
Resumen
TiO2 doped with nitrogen (N), silicon (Si), or selenium (Se) (N-TiO2, Si-TiO2, and Se-TiO2) were obtained by the integrated sol-gel and solvothermal method with short time of crystallization and low temperature. The UV/visible and visible light absorption and photocatalytic activity of these doped TiO2 materials were improved by a dry-co-grinding process with a short grinding time and low rotational speed (30 min at 200 rpm) to obtain N-TiO2/Si-TiO2 and N-TiO2/Se-TiO2 catalysts. The materials were characterized by XRD, Raman, BET surface area and porosity, XRF, SEM, TEM, FTIR-ATR, and UV/vis-DRS analyses. The photocatalytic activity of these materials was evaluated by the degradation of phenol under UV/visible and visible light irradiation. The integrated sol-gel and solvothermal methods with short time of crystallization (2 h) and low temperature (225 °C), and the dry-co-grinding process during 30 min at 200 rpm led to materials (N-TiO2/Si-TiO2 and N-TiO2/Se-TiO2) with higher specific surface area, a reduction in the band gap value, and an enhancement of the absorption in the visible light spectrum. Moreover, N-TiO2/Si-TiO2 and N-TiO2/Se-TiO2 exhibited higher photocatalytic activities for degradation of phenol under UV/visible and visible light irradiation than those obtained with the doped TiO2, synthesized TiO2 or TiO2 P25. © 2018 Elsevier Ltd
URI
http://hdl.handle.net/11407/6067
Colecciones
  • Indexados Scopus [2005]
Todo RI UdeMComunidades & ColeccionesPor fecha de publicaciónAutoresTítulosPalabras claveEsta colecciónPor fecha de publicaciónAutoresTítulosPalabras clave
Mi cuentaAccederRegistro
Estadísticas GTMVer Estadísticas GTM
OFERTA ACADÉMICA
  • Oferta académica completa
  • Facultad de Derecho
  • Facultad de Comunicación
  • Facultad de Ingenierías
  • Facultad de Ciencias Económicas y Administrativas
  • Facultad de Ciencias Sociales y Humanas
  • Facultad de Ciencias Básicas
  • Facultad de Diseño
SERVICIOS
  • Teatro
  • Educación continuada
  • Centro de Idiomas
  • Consultorio Jurídico
  • Centro de Asesorías y Consultorías
  • Prácticas empresariales
  • Operadora Profesional de Certámenes
INVESTIGACIÓN
  • Biblioteca
  • Centros de investigación
  • Revistas científicas
  • Repositorio institucional
  • Universidad - Empresa - Estado - Sociedad

Universidad de Medellín - Teléfono: +57 (4) 590 4500 Ext. 11422 - Dirección: Carrera 87 N° 30 - 65 Medellín - Colombia - Suramérica
© Copyright 2012 ® Todos los Derechos Reservados
Contacto

 infotegra.com