Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Highly photoactive anatase nanoparticles obtained using trifluoroacetic acid as an electron scavenger and morphological control agent
Year:2013
Research Areas
  • Physics chemical and mathematical,
  • Engineering
Information
Abstract
Fluorine species adsorbed on the surface of TiO2 anatase nanoparticles improve their photocatalytic performance by reducing the recombination rate of photogenerated electrons and holes. Trifluoroacetic acid (TFAA) has been recently proposed as a promising harmless substitute for hydrofluoric acid (HF) in preparing fluorine-modified anatase with good scavenger properties. However the photocatalytic performance of the TiO2 nanoparticles also depends on their specific morphology, by which the number and type of crystal facets, which remain exposed, are determined. A comprehensive study is presented in this contribution which for the first time describes the role of TFAA in stabilizing the highly photoactive {001} TiO2 facets. Furthermore, by reducing the amount of water incorporated into the reaction medium, a simple one-step synthesis method is also proposed that allows the preparation of TFAA-modified anatase nanoparticles with specific morphology and selected stabilized facets, eventually yielding a semiconductor material with excellent photocatalytic properties.
International
Si
JCR
Si
Title
JOURNAL OF MATERIALS CHEMISTRY
ISBN
2050-7488
Impact factor JCR
Impact info
Volume
1
10.1039/c3ta12970e
Journal number
45
From page
14358
To page
14367
Month
SIN MES
Ranking
Participants
  • Autor: DAVID CALATAYD (ICV-CSIC)
  • Autor: TERESA JARDIEL (ICV-CSIC)
  • Autor: Marco Peiteado Lopez (UPM)
  • Autor: CRISTINA FERNANDEZ RODRIGUEZ (ICV-CSIC)
  • Autor: ROCIO E. ESTEVEZ (U LAS PALMAS G)
  • Autor: JOSE MARIA RODRIGUEZ (ULPG)
  • Autor: FRANCISCO PALOMARES (ICMM-CSIC)
  • Autor: FAUSTO RUBIO (ICV-CSIC6)
  • Autor: DANIEL FERNANDEZ-HEVIA (INAEL)
  • Autor: Amador Caballero Cuesta (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Propiedades ópticas, eléctricas y magnéticas de materiales y sus aplicaciones (POEMMA)
  • Centro o Instituto I+D+i: Centro de Materiales y Dispositivos Avanzados para Tecnologías de Información y Comunicaciones
  • Departamento: Física Aplicada a las Tecnologías de la Información
S2i 2019 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)