Advanced search
1 file | 2.29 MB

Synthesis of uniformly dispersed anatase nanoparticles inside mesoporous silica thin films via controlled breakup and crystallization of amorphous TiO2 deposited using atomic layer deposition

(2013) NANOSCALE. 5(11). p.5001-5008
Author
Organization
Abstract
Amorphous titanium dioxide was introduced into the pores of mesoporous silica thin films with 75% porosity and 12 nm average pore diameter via Atomic Layer Deposition (ALD) using alternating pulses of tetrakis(dimethylamino) titanium and water. Calcination provoked fragmentation of the deposited amorphous TiO2 phase and its crystallization into anatase nanoparticles inside the nanoporous film. The narrow particle size distribution of 4 +/- 2 nm and the uniform dispersion of the particles over the mesoporous silica support were uniquely revealed using electron tomography. These anatase nanoparticle bearing films showed photocatalytic activity in methylene blue degradation. This new synthesis procedure of the anatase nanophase in mesoporous silica films using ALD is a convenient fabrication method of photocatalytic coatings amenable to application on very small as well as very large surfaces.
Keywords
SUPPORT, DEGRADATION, RECONSTRUCTION, CO2, H2O, GROWTH, REDUCTION, ELECTRON TOMOGRAPHY, TITANIUM-OXIDE PHOTOCATALYSTS, ZEOLITES

Downloads

  • (...).pdf
    • full text
    • |
    • UGent only
    • |
    • PDF
    • |
    • 2.29 MB

Citation

Please use this url to cite or link to this publication:

Chicago
Sree, Sreeprasanth Pulinthanathu, Jolien Dendooven, Kasper Masschaele, Heidari M Hamed, Shaoren Deng, Sara Bals, Christophe Detavernier, and Johan A Martens. 2013. “Synthesis of Uniformly Dispersed Anatase Nanoparticles Inside Mesoporous Silica Thin Films via Controlled Breakup and Crystallization of Amorphous TiO2 Deposited Using Atomic Layer Deposition.” Nanoscale 5 (11): 5001–5008.
APA
Sree, S. P., Dendooven, J., Masschaele, K., Hamed, H. M., Deng, S., Bals, S., Detavernier, C., et al. (2013). Synthesis of uniformly dispersed anatase nanoparticles inside mesoporous silica thin films via controlled breakup and crystallization of amorphous TiO2 deposited using atomic layer deposition. NANOSCALE, 5(11), 5001–5008.
Vancouver
1.
Sree SP, Dendooven J, Masschaele K, Hamed HM, Deng S, Bals S, et al. Synthesis of uniformly dispersed anatase nanoparticles inside mesoporous silica thin films via controlled breakup and crystallization of amorphous TiO2 deposited using atomic layer deposition. NANOSCALE. 2013;5(11):5001–8.
MLA
Sree, Sreeprasanth Pulinthanathu, Jolien Dendooven, Kasper Masschaele, et al. “Synthesis of Uniformly Dispersed Anatase Nanoparticles Inside Mesoporous Silica Thin Films via Controlled Breakup and Crystallization of Amorphous TiO2 Deposited Using Atomic Layer Deposition.” NANOSCALE 5.11 (2013): 5001–5008. Print.
@article{4357566,
  abstract     = {Amorphous titanium dioxide was introduced into the pores of mesoporous silica thin films with 75\% porosity and 12 nm average pore diameter via Atomic Layer Deposition (ALD) using alternating pulses of tetrakis(dimethylamino) titanium and water. Calcination provoked fragmentation of the deposited amorphous TiO2 phase and its crystallization into anatase nanoparticles inside the nanoporous film. The narrow particle size distribution of 4 +/- 2 nm and the uniform dispersion of the particles over the mesoporous silica support were uniquely revealed using electron tomography. These anatase nanoparticle bearing films showed photocatalytic activity in methylene blue degradation. This new synthesis procedure of the anatase nanophase in mesoporous silica films using ALD is a convenient fabrication method of photocatalytic coatings amenable to application on very small as well as very large surfaces.},
  author       = {Sree, Sreeprasanth Pulinthanathu and Dendooven, Jolien and Masschaele, Kasper and Hamed, Heidari M and Deng, Shaoren and Bals, Sara and Detavernier, Christophe and Martens, Johan A},
  issn         = {2040-3364},
  journal      = {NANOSCALE},
  keyword      = {SUPPORT,DEGRADATION,RECONSTRUCTION,CO2,H2O,GROWTH,REDUCTION,ELECTRON TOMOGRAPHY,TITANIUM-OXIDE PHOTOCATALYSTS,ZEOLITES},
  language     = {eng},
  number       = {11},
  pages        = {5001--5008},
  title        = {Synthesis of uniformly dispersed anatase nanoparticles inside mesoporous silica thin films via controlled breakup and crystallization of amorphous TiO2 deposited using atomic layer deposition},
  url          = {http://dx.doi.org/10.1039/c3nr00594a},
  volume       = {5},
  year         = {2013},
}

Altmetric
View in Altmetric
Web of Science
Times cited: