Ghent University Academic Bibliography

Advanced

Cementitious materials with air-purifying and self-cleaning properties using titanium dioxide photocatalysis

Anibal Maury Ramirez UGent (2011)
abstract
Although there are already some commercially available TiO2 loaded cementitious materials on the market, their application in the construction sector is still not common. With some exceptions, this situation is most probably due to low efficiencies observed during the pioneering projects both regarding self-cleaning and air-purifying properties. Based on the current scientific literature, the reason is that there are still numerous unanswered questions on the application of TiO2 photocatalysis on cementitious materials. So, there was an accelerated commercialization of these materials before basic questions on these were resolved. Therefore, this research is aimed at a better assessment of the application potential of heterogeneous photocatalysis in cementitious materials and is meant to provide new scientific insights towards the development of innovative TiO2 loaded cementitious materials for both self-cleaning (algal fouling removal) and air-purifying (toluene removal) purposes. Four different aspects have been investigated under specific conditions and using the developed materials. These are the effects of (1) substrate characteristics, (2) TiO2 loading technique, (3) environmental weathering and (4) pollutant concentration and contact time on the materials performance towards the defined purposes. First, substrate porosity indicated to increase the toluene elimination rates while roughness did not show any significant effect on this property. Contrary, both substrate porosity and roughness did evidence a decrease in the algal fouling reduction. Second, developed coatings based on commercially available TiO2 nanoparticles were more efficient towards toluene removal and algal fouling reduction compared to the coatings produced by the applied direct TiO2 synthesis techniques. Third, the effect of environmental weathering on the toluene elimination rates was neglectable while this phenomenon had significant effect on the algal fouling reduction. Finally, increasing toluene elimination rates were obtained at higher toluene concentrations and gas flow rates.
Please use this url to cite or link to this publication:
author
promoter
UGent and UGent
organization
alternative title
Cementgebonden materialen met luchtzuiverende en zelfreinigende eigenschappen gebruikmakend van titaandioxidefotokatalyse
year
type
dissertation (monograph)
subject
keyword
sustainable building materials, TiO2, photocatalysis, cement, toluene removal, algal fouling, autoclaved aerated concrete
pages
XIV, 136 pages
publisher
Ghent University. Faculty of Engineering and Architecture
place of publication
Ghent, Belgium
defense location
Gent : Het Pand (zaal rector Vermeylen)
defense date
2011-12-22 17:00
ISBN
9789085784678
language
English
UGent publication?
yes
classification
D1
additional info
dissertation consists of copyrighted material
copyright statement
I have transferred the copyright for this publication to the publisher
id
2020062
handle
http://hdl.handle.net/1854/LU-2020062
date created
2012-02-06 11:17:26
date last changed
2012-02-08 14:33:52
@phdthesis{2020062,
  abstract     = {Although there are already some commercially available TiO2 loaded cementitious materials on the market, their application in the construction sector is still not common. With some exceptions, this situation is most probably due to low efficiencies observed during the pioneering projects both regarding self-cleaning and air-purifying properties. Based on the current scientific literature, the reason is that there are still numerous unanswered questions on the application of TiO2 photocatalysis on cementitious materials. So, there was an accelerated commercialization of these materials before basic questions on these were resolved. Therefore, this research is aimed at a better assessment of the application potential of heterogeneous photocatalysis in cementitious materials and is meant to provide new scientific insights towards the development of innovative TiO2 loaded cementitious materials for both self-cleaning (algal fouling removal) and air-purifying (toluene removal) purposes. Four different aspects have been investigated under specific conditions and using the developed materials. These are the effects of (1) substrate characteristics, (2) TiO2 loading technique, (3) environmental weathering and (4) pollutant concentration and contact time on the materials performance towards the defined purposes. First, substrate porosity indicated to increase the toluene elimination rates while roughness did not show any significant effect on this property. Contrary, both substrate porosity and roughness did evidence a decrease in the algal fouling reduction. Second, developed coatings based on commercially available TiO2 nanoparticles were more efficient towards toluene removal and algal fouling reduction compared to the coatings produced by the applied direct TiO2 synthesis techniques. Third, the effect of environmental weathering on the toluene elimination rates was neglectable while this phenomenon had significant effect on the algal fouling reduction. Finally, increasing toluene elimination rates were obtained at higher toluene concentrations and gas flow rates.},
  author       = {Maury Ramirez, Anibal},
  isbn         = {9789085784678},
  keyword      = {sustainable building materials,TiO2,photocatalysis,cement,toluene removal,algal fouling,autoclaved aerated concrete},
  language     = {eng},
  pages        = {XIV, 136},
  publisher    = {Ghent University. Faculty of Engineering and Architecture},
  school       = {Ghent University},
  title        = {Cementitious materials with air-purifying and self-cleaning properties using titanium dioxide photocatalysis},
  year         = {2011},
}

Chicago
Maury Ramirez, Anibal. 2011. “Cementitious Materials with Air-purifying and Self-cleaning Properties Using Titanium Dioxide Photocatalysis”. Ghent, Belgium: Ghent University. Faculty of Engineering and Architecture.
APA
Maury Ramirez, A. (2011). Cementitious materials with air-purifying and self-cleaning properties using titanium dioxide photocatalysis. Ghent University. Faculty of Engineering and Architecture, Ghent, Belgium.
Vancouver
1.
Maury Ramirez A. Cementitious materials with air-purifying and self-cleaning properties using titanium dioxide photocatalysis. [Ghent, Belgium]: Ghent University. Faculty of Engineering and Architecture; 2011.
MLA
Maury Ramirez, Anibal. “Cementitious Materials with Air-purifying and Self-cleaning Properties Using Titanium Dioxide Photocatalysis.” 2011 : n. pag. Print.