fulltext.study @t Gmail

Preparation, testing and performance of a TiO2/polyester photocatalyst for the degradation of gaseous methanol

Paper ID Volume ID Publish Year Pages File Format Full-Text
47429 46471 2010 7 PDF Available
Title
Preparation, testing and performance of a TiO2/polyester photocatalyst for the degradation of gaseous methanol
Abstract

TiO2 modified polyester photocatalysts were prepared by immersion, drying and curing of the polyester in TiO2 containing suspensions under different experimental conditions. The structure of TiO2 layers on the polyester varied according to the time of immersion and type of polyester used. The optical microscopy (OM) and scanning electron microscopy (SEM) show a more uniform distribution of TiO2 on the polyester prepared by sol–gel as compared to the silicone as a binder. Energy diffuse spectroscopy (EDS) and infrared (ATR-FTIR) spectroscopy confirmed that TiO2 bonded to the polyester textile. BET analysis showed that TiO2–SiO2 applied by sol–gel on polyester led to a higher surface area compared to silicon. Photodegradation of gaseous methanol mediated by the TiO2–polyester was followed by gas chromatography (GC) and ATR-FTIR spectroscopy. The TiO2–polyester sample prepared by sol–gel with an immersion time of 11 h exhibited the most favorable photocatalytic performance during methanol degradation in the gas phase. The best performance during methanol photodegradation was observed for the smallest agglomerate TiO2 size. The structure–reactivity relationship for different photocatalysts was systematically explored. Quantitative evaluation of the cluster size, immersion time and catalyst loading provided the evidence for the best performance for methanol degradation by the catalyst prepared at 11 h immersion time. The photocatalytic activity of the TiO2–polyester catalyst was observed to remain stable during methanol over several degradation cycles.

Keywords
Sol–gel; Photocatalysis; Polyester-TiO2; Methanol photodegradation
First Page Preview
Preparation, testing and performance of a TiO2/polyester photocatalyst for the degradation of gaseous methanol
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 94, Issues 1–2, 1 February 2010, Pages 166–172
Authors
, , , , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us