Photocatalytic Decomposition of Formaldehyde Using Titania Coated Lime Tile
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Chaoxiang Liu
,
Eiko Obuchi
Abstract
A traditional and popular Japanese house decorating lime tile, commercially available “Limix”, was used to photodecompose the formaldehyde after coating the tile with a titania sol, which solves the problem of sick-building syndrome. A total of five kinds of lime tile samples with titania sol coating and without coating were examined by using a flow-type photoreactor based on the JIS standard to test their photocatalytic activities. The photocatalytic mechanism in the coated lime tile was also analyzed by Electron Paramagnetic Resonance Spectroscopy (EPR). The results show that a high removal efficiency of formaldehyde was achieved when using the lime tile combined with commercially available zeolite compared to the lime tile immobilized titania photocatalyst. The EPR spectrum indicates that oxygen centered radicals and surface trapped holes are present in the titania sol, but it is much different from the spectrum observed in the pure anatase and Degussa P25 titania. It means that there are different characteristics among these systems on the photocatalysis mechanism.
© 2016 by Walter de Gruyter Berlin/Boston
Artikel in diesem Heft
- Preface (TiO2-11 Section)
- Preface (AOTs-12 Section)
- Photocatalytic Decomposition of Formaldehyde Using Titania Coated Lime Tile
- TiO2-Nitrogen Modified for Water Decolourisation under VIS Radiation
- FTIR Studies of the Surface of TiO2, Fe-TiO2 and Fe-C-TiO2 Photocatalysts in Phenol Oxidation Via the Photo-Fenton Process
- Using Titania Photocatalysts to Degrade Toluene in a Combined Adsorption and Photocatalysis Process
- Photoelectrochemical Decomposition of VOCs on an Anodized TiO2 Plate
- Enhancement and Modeling of the Photocatalytic Degradation of Benzoic Acid
- Reactivity Indices for ortho/para Monosubstituted Phenols
- Modeling of the Photocatalytic Degradation Reactions of Aromatic Pollutants: A Solvent Effect Model
- Photodegradation of Malachite Green Using Immobilized TiO2 and Factorial Design
- Adsorption and Photodegradation of Humic Acids by Nano-Structured TiO2 for Water Treatment
- Photocatalytic Reductive Destruction of Azo Dyes by Polyoxometalates
- Effect of the Sintering Temperature on the Photocatalytic Activity of CdO + CdTiO3 Thin Films
- Photocatalytic Activity in Zn2TiO4 + ZnO Thin Films Obtained by the Sol-gel Process
- TiO2-Based Materials for Toluene Photocalytic Oxidation: Water Vapor Influence
- Influence of Aqueous Solubility of Various VOCs on Their Photocatalytic Degradation
- Photocatalysis: A Powerful Technology for Cold Storage Applications
- Some Remarks on So-Called Heterogeneous Photocatalysis and on the Mechanical Application of the Langmuir-Hinshelwood Kinetic Model
Artikel in diesem Heft
- Preface (TiO2-11 Section)
- Preface (AOTs-12 Section)
- Photocatalytic Decomposition of Formaldehyde Using Titania Coated Lime Tile
- TiO2-Nitrogen Modified for Water Decolourisation under VIS Radiation
- FTIR Studies of the Surface of TiO2, Fe-TiO2 and Fe-C-TiO2 Photocatalysts in Phenol Oxidation Via the Photo-Fenton Process
- Using Titania Photocatalysts to Degrade Toluene in a Combined Adsorption and Photocatalysis Process
- Photoelectrochemical Decomposition of VOCs on an Anodized TiO2 Plate
- Enhancement and Modeling of the Photocatalytic Degradation of Benzoic Acid
- Reactivity Indices for ortho/para Monosubstituted Phenols
- Modeling of the Photocatalytic Degradation Reactions of Aromatic Pollutants: A Solvent Effect Model
- Photodegradation of Malachite Green Using Immobilized TiO2 and Factorial Design
- Adsorption and Photodegradation of Humic Acids by Nano-Structured TiO2 for Water Treatment
- Photocatalytic Reductive Destruction of Azo Dyes by Polyoxometalates
- Effect of the Sintering Temperature on the Photocatalytic Activity of CdO + CdTiO3 Thin Films
- Photocatalytic Activity in Zn2TiO4 + ZnO Thin Films Obtained by the Sol-gel Process
- TiO2-Based Materials for Toluene Photocalytic Oxidation: Water Vapor Influence
- Influence of Aqueous Solubility of Various VOCs on Their Photocatalytic Degradation
- Photocatalysis: A Powerful Technology for Cold Storage Applications
- Some Remarks on So-Called Heterogeneous Photocatalysis and on the Mechanical Application of the Langmuir-Hinshelwood Kinetic Model
