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Visible-light-induced photocatalytic oxidation of carboxylic acids and aldehydes over N-doped TiO2 loaded with Fe, Cu or Pt

Paper ID Volume ID Publish Year Pages File Format Full-Text
48023 46488 2008 7 PDF Available
Title
Visible-light-induced photocatalytic oxidation of carboxylic acids and aldehydes over N-doped TiO2 loaded with Fe, Cu or Pt
Abstract

The rates of photocatalytic oxidation of gaseous formic acid, acetic acid, acetaldehyde and toluene over N-doped TiO2 (TiO2−xNx) loaded with Fe, Cu or Pt were determined under visible light irradiation (>410 nm). It was found that the loading of Fe, Cu or Pt resulted in similar rates of enhancement of acetaldehyde oxidation, and that Cu and Pt gave the highest rates of acetic acid and toluene oxidation, respectively. It was also confirmed that the rate of formic acid photooxidation was enhanced by factors of 5 and 22 on loading of Fe and Pt, respectively. The extremely high rate enhancement of formic acid oxidation over Pt–TiO2−xNx was found to be due to a combined effect of photocatalysis and thermal catalysis at room temperature facilitated by nanoscale (1–2 nm) Pt. These results indicate several important points as to enhancement of the activity of TiO2−xNx modified with metallic species.

Keywords
Nitrogen; Doping; TiO2; Platinum; Iron; Copper; Visible light; Acetaldehyde; Formic acid; Acetic acid
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Visible-light-induced photocatalytic oxidation of carboxylic acids and aldehydes over N-doped TiO2 loaded with Fe, Cu or Pt
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 83, Issues 1–2, 1 September 2008, Pages 56–62
Authors
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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