Next Article in Journal
Anti-Depressant-Like Effect of Kaempferitrin Isolated from Justicia spicigera Schltdl (Acanthaceae) in Two Behavior Models in Mice: Evidence for the Involvement of the Serotonergic System
Next Article in Special Issue
Using Dyes for Evaluating Photocatalytic Properties: A Critical Review
Previous Article in Journal
Effects of Platycodin D on Proliferation, Apoptosis and PI3K/Akt Signal Pathway of Human Glioma U251 Cells
Previous Article in Special Issue
A Review on Visible Light Active Perovskite-Based Photocatalysts
Article Menu

Export Article

Open AccessArticle
Molecules 2014, 19(12), 21424-21441;

Photocatalytic Oxidation of Diethyl Sulfide Vapor over TiO2-Based Composite Photocatalysts

1,2,3,* and 1,2,3
Boreskov Institute of Catalysis, pr. Ak. Lavrentieva 5, Novosibirsk 630090, Russia
Novosibirsk State University, st. Pirogova 2, Novosibirsk 630090, Russia
Research and Educational Centre for Energoefficient Catalysis (NSU), st. Pirogova 2, Novosibirsk 630090, Russia
Author to whom correspondence should be addressed.
Received: 31 August 2014 / Revised: 4 December 2014 / Accepted: 12 December 2014 / Published: 19 December 2014
(This article belongs to the Special Issue Photocatalysis)
Full-Text   |   PDF [3500 KB, uploaded 19 December 2014]   |  


Composite TiO2/activated carbon (TiO2/AC) and TiO2/SiO2 photocatalysts with TiO2 contents in the 10 to 80 wt. % range were synthesized by the TiOSO4 thermal hydrolysis method and characterized by AES, BET, X-ray diffraction and FT-IR ATR methods. All TiO2 samples were in the anatase form, with a primary crystallite size of about 11 nm. The photocatalytic activities of the TiO2/AC and TiO2/SiO2 samples were tested in the gas-phase photocatalytic oxidation (PCO) reaction of diethyl sulfide (DES) vapor in a static reactor by the FT-IR in situ method. Acetaldehyde, formic acid, ethylene and SO2 were registered as the intermediate products which finally were completely oxidized to the final oxidation products – H2O, CO2, CO and SO42 ions. The influence of the support on the kinetics of DES PCO and on the TiO2/AC and TiO2/SiO2 samples’ stability during three long-term DES PCO cycles was investigated. The highest PCO rate was observed for TiO2/SiO2 photocatalysts. To evaluate the activity of photocatalysts the turnover frequency values (TOF) were calculated for three photocatalysts (TiO2, TiO2/AC and TiO2/SiO2) for the same amount of mineralized DES. It was demonstrated that the TOF value for composite TiO2/SiO2 photocatalysts was 3.5 times higher than for pure TiO2. View Full-Text
Keywords: photocatalysis; TiO2; activated carbon; silica; composite photocatalyst; diethyl sulfide photocatalysis; TiO2; activated carbon; silica; composite photocatalyst; diethyl sulfide

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Supplementary material

Printed Edition Available!
A printed edition of this Special Issue is available here.

Share & Cite This Article

MDPI and ACS Style

Selishchev, D.; Kozlov, D. Photocatalytic Oxidation of Diethyl Sulfide Vapor over TiO2-Based Composite Photocatalysts. Molecules 2014, 19, 21424-21441.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Molecules EISSN 1420-3049 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top