Preparation of nitrogen-doped mesoporous TiO2 with a room-temperature ionic liquid

Tung Li Hsiung, H. Paul Wang, Yu Lin Wei

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The nitrogen-doped mesoporous TiO2 (meso N-TiO2) have been prepared by the sol-gel method with room temperature ionic liquids (RTIL) (C4mimBF4) as the template. By 1H NMR, interactions between titanium and ionic liquid are observed. The meso N-TiO 2 (10-50 nm) possesses the anatase phase with a pore opening of 5-8 nm observed by TEM. The band gap of the meso N-TiO2 is 2.47 eV as determined by DR-UV/VIS. The meso N-TiO2 has a remarkable activity in photocatalytic degradation of methylene blue under visible light (λ. >400 nm). The extended X-ray absorption fine structure (EXAFS) data show that the Ti-0 and Ti-Ti bond distances in the meso N-TiO2 are 1.96 and 3.02 å, respectively, suggesting that the meso N-TiO2 may be distorted with insertion of nitrogen into the TiO2 matrix.

Original languageEnglish
Title of host publicationNanotechnology 2010
Subtitle of host publicationAdvanced Materials, CNTs, Particles, Films and Composites - Technical Proceedings of the 2010 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2010
Pages440-443
Number of pages4
Publication statusPublished - 2010 Nov 9
EventNanotechnology 2010: Advanced Materials, CNTs, Particles, Films and Composites - 2010 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2010 - Anaheim, CA, United States
Duration: 2010 Jun 212010 Jun 24

Publication series

NameNanotechnology 2010: Advanced Materials, CNTs, Particles, Films and Composites - Technical Proceedings of the 2010 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2010
Volume1

Other

OtherNanotechnology 2010: Advanced Materials, CNTs, Particles, Films and Composites - 2010 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2010
CountryUnited States
CityAnaheim, CA
Period10-06-2110-06-24

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

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