fulltext.study @t Gmail

Synthesis, characterization and photocatalytic activity of MxCe1−xVO4 (M = Li, Ca and Fe)

Paper ID Volume ID Publish Year Pages File Format Full-Text
42451 45926 2009 10 PDF Available
Title
Synthesis, characterization and photocatalytic activity of MxCe1−xVO4 (M = Li, Ca and Fe)
Abstract

Non-stoichiometric substituted cerium vanadates, MxCe1−xVO4 (M = Li, Ca and Fe), were synthesized by solid-state reactions. The crystal structure was analyzed by powder X-ray diffraction and it exhibits a tetragonal zircon structure, crystallizing in the space group I41/amd with a = 7.3733(4) and c = 6.4909(4) Å and Z = 4. Particle sizes were in the range of 600–800 nm, as observed by scanning electron microscopy. The thermal analysis of the compounds showed phase stability up to 1100 °C. The UV diffuse reflectance spectra indicated that the compounds have band gaps in the range of 2.6–2.9 eV. The photocatalytic activity of these compounds was investigated for the first time for the degradation of different dyes, and organics, the oxidation of cyclohexane and the hydroxylation of benzene. The degradation of dyes was modeled using the Langmuir–Hinshelwood kinetics, while the oxidation of cyclohexane and hydroxylation of benzene were modeled using a free radical mechanism and a series reaction mechanism, respectively.

Graphical abstractLixCe1−xVO4 was synthesized by the solid-state technique. Particle sizes were in the range of 600–800 nm, as observed by scanning electron microscopy. The photocatalytic activity of these compounds was investigated for the first time for the degradation of different dyes and organics, the oxidation of cyclohexane and the hydroxylation of benzene.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Photocatalysis; Photo-oxidation; Orthovanadates; Synthesis
First Page Preview
Synthesis, characterization and photocatalytic activity of MxCe1−xVO4 (M = Li, Ca and Fe)
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 A: General - Volume 361, Issues 1–2, 20 June 2009, Pages 32–41
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