Exfoliated graphene into highly ordered mesoporous titania films: Highly performing nanocomposites from integrated processing

Luca Malfatti*, Paolo Falcaro, Alessandra Pinna, Barbara Lasio, Maria F. Casula, Danilo Loche, Andrea Falqui, Benedetta Marmiroli, Heinz Amenitsch, Roberta Sanna, Alberto Mariani, Plinio Innocenzi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

To fully exploit the potential of self-assembly in a single step, we have designed an integrated process to obtain mesoporous graphene nanocomposite films. The synthesis allows incorporating graphene sheets with a small number of defects into highly ordered and transparent mesoporous titania films. The careful design of the porous matrix at the mesoscale ensures the highest diffusivity in the films. These exhibit an enhanced photocatalytic efficiency, while the high order of the mesoporosity is not affected by the insertion of the graphene sheets and is well-preserved after a controlled thermal treatment. In addition, we have proven that the nanocomposite films can be easily processed by deep X-ray lithography to produce functional arrays.

Original languageEnglish (US)
Pages (from-to)795-802
Number of pages8
JournalACS Applied Materials and Interfaces
Volume6
Issue number2
DOIs
StatePublished - Jan 22 2014

Keywords

  • exfoliated graphene
  • mesoporous materials
  • patterning
  • thin films
  • titania

ASJC Scopus subject areas

  • Materials Science(all)

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