fulltext.study @t Gmail

Heterogeneous Fenton catalysts based on clays, silicas and zeolites

Paper ID Volume ID Publish Year Pages File Format Full-Text
47207 46464 2010 26 PDF Available
Title
Heterogeneous Fenton catalysts based on clays, silicas and zeolites
Abstract

This review focuses on the use of layered and porous aluminosilicates and layered double hydroxides as catalysts for the Fenton reaction. In the general sections of this review we present the elementary equations leading to the generation of hydroxyl radicals from H2O2 and the subsequent reactivity of this highly aggressive species. After justifying the advantages of using insoluble solids as heterogeneous catalysts, replacing soluble iron salts, we discuss the desirable features that should have an ideal Fenton catalyst and which are the parameters to be considered when ranking the efficiency of the materials. The main part of this review is focused on presenting the results reported up to late 2009 obtained using layered and porous aluminosilicates as heterogeneous catalysts. The structure of these materials is briefly presented to highlight the benefits and advantages of each type of solid with respect to their use as catalysts. When presenting the catalytic data, special emphasis is made on the missing data that would be useful to clarify, the relative efficiency and performance of the materials. In the final concluding remarks we stress again that the present situation needs to be clarified to draw solid conclusions on the relative performance and efficiency of the tested catalysts.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideResearch highlights▶ This review focuses on the use of layered and porous aluminosilicates and layered double hydroxides as catalysts for the Fenton reaction. ▶ After presenting general sections dealing with the generation of hydroxyl radicals from H2O2 and its reactivity, the advantages of using insoluble solids as heterogeneous catalysts, replacing soluble iron salts, are discussed. ▶ The features of an ideal Fenton catalyst are commented. ▶ The main part of this review is focused on presenting the results reported up to late 2009 obtained using layered and porous aluminosilicates as heterogeneous catalysts. ▶ In the final concluding remarks we stress again that the present situation needs to be clarified to draw solid conclusions on the relative performance and efficiency of the tested catalysts.

Keywords
Heterogeneous catalysis; Clays; Zeolites; Mesoporous silicas; Pollution remediation
First Page Preview
Heterogeneous Fenton catalysts based on clays, silicas and zeolites
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 99, Issues 1–2, 31 August 2010, Pages 1–26
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