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Mild oxidation of bulky organic compounds with hydrogen peroxide over mesoporous TiO2-SiO2 xerogels prepared by non-hydrolytic sol–gel

Paper ID Volume ID Publish Year Pages File Format Full-Text
47323 46467 2010 7 PDF Available
Title
Mild oxidation of bulky organic compounds with hydrogen peroxide over mesoporous TiO2-SiO2 xerogels prepared by non-hydrolytic sol–gel
Abstract

The oxidation of bulky organic compounds with aqueous H2O2 over a TiO2-SiO2 xerogel catalyst prepared by a simple non-hydrolytic sol–gel route is described for the first time. Anthracene, cyclooctene, styrene, α-naphtol, diphenyl sulfide, dibenzothiophene and 4,6-dimethyl-dibenzothiophene were oxidized with high activity, selectivity and H2O2 efficiency at moderate temperatures (40–60 °C). Moreover, a similar catalytic behavior was observed when tert-butyl hydroperoxide (TBHP) was used as an oxidizing agent. These excellent catalytic performances were ascribed to the unique texture of the catalyst (specific surface area 1200 m2 g−1, pore volume 2.4 cm3 g−1, average pore diameter 15 nm) and to the stability of Ti sites after exposure to aqueous H2O2 or TBHP.

Keywords
Non-hydrolytic sol–gel; Anthracene; Cyclooctene; Styrene; α-Naphtol; Mild oxidation; H2O2
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Mild oxidation of bulky organic compounds with hydrogen peroxide over mesoporous TiO2-SiO2 xerogels prepared by non-hydrolytic sol–gel
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 97, Issues 3–4, 18 June 2010, Pages 407–413
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
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