fulltext.study @t Gmail

A study on Al and Al–Ce–Fe pillaring species and their catalytic potential as they are supported on a bentonite

Paper ID Volume ID Publish Year Pages File Format Full-Text
43204 45958 2008 5 PDF Available
Title
A study on Al and Al–Ce–Fe pillaring species and their catalytic potential as they are supported on a bentonite
Abstract

This work describes the synthesis and characterization by XRD of pillaring species in solid state, obtained from Al or Al–Ce–Fe polyhydroxocationic solutions, the modification of a bentonite via pillaring by ionic exchange with such solutions and the catalytic activity of the pillared clays in the phenol oxidation reaction in diluted aqueous medium with hydrogen peroxide. Results indicate the formation of boehmite from the Al3+ polyhydroxocationic solution and the presence of three different crystalline structures (boehmite, α-Fe2O3 and CeO2) into the solid synthesized from the Al–Ce–Fe polyhydroxocationic solution. The EPR analysis confirms the formation of iron oxide particles and the likely inclusion of isolated Fe3+ species into the alumina matrix. On the other hand, the clay modified with Al–Ce–Fe is a very active (100% of phenol conversion in the first hour of reaction) and selective (55% of selectivity to CO2) catalyst in the total oxidation of phenol, at 20 °C and atmospheric pressure.

Graphical abstractThis work describes the synthesis and characterization by XRD of pillaring species in solid state, obtained from Al or Al–Ce–Fe polyhydroxocationic solutions, the modification of a bentonite via pillaring and the catalytic activity of the pillared clays in the total oxidation reaction of phenol. Results indicate the formation of boehmite from the Al3+ polyhydroxocationic solution and the presence of three different crystalline structures (boehmite, α-Fe2O3 and CeO2) into the solid synthesized from the Al–Ce–Fe polyhydroxocationic solution.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Pillared clay; Phenol oxidation; Wastewater treatment; Al–Ce–Fe polyoxocation
First Page Preview
A study on Al and Al–Ce–Fe pillaring species and their catalytic potential as they are supported on a bentonite
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 334, Issues 1–2, 1 January 2008, Pages 168–172
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