Gas-Phase Photocatalytic Oxidation of Diethyl Sulfide over TiO2: Kinetic Investigations and Catalyst Deactivation Full article
| Journal |
Applied Catalysis B: Environmental
ISSN: 0926-3373 , E-ISSN: 1873-3883 |
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| Output data | Year: 2003, Volume: 42, Number: 1, Pages: 77-87 Pages count : 11 DOI: 10.1016/S0926-3373(02)00217-5 | ||||
| Tags | Batch reactor, Chemical warfare agents, FT-IR, Mustard gas, Photocatalysis | ||||
| Authors |
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| Affiliations |
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Funding (2)
| 1 | North Atlantic Treaty Organization | SfP-974209 |
| 2 | Russian Foundation for Basic Research | 00-15-97446 |
Abstract:
The gas-phase heterogeneous photocatalytic oxidation of diethyl sulfide (DES), a simulant for chemical agent mustard gas, was investigated in a batch reactor using detection of gaseous products and FT-IR identification of surface species. Acetaldehyde and ethylene were detected as gaseous intermediates and diethylsulfone and carboxylates were detected as surface intermediate products. It was found that DES is oxidized completely and the final products of its oxidation are carbon dioxide, water and surface sulfate species. Deactivation of the TiO2 photocatalyst was evidenced by increased time of DES complete mineralization in consecutive treatment of fixed amount of DES in the batch reactor. Carbonate and sulfate species were detected on the TiO2 surface after complete DES oxidation by means of FT-IR diffuse reflectance spectroscopy. These structures turned out to be responsible for TiO2 deactivation.
Cite:
Kozlov D.V.
, Vorontsov A.V.
, Smirniotis P.G.
, Savinov E.N.
Gas-Phase Photocatalytic Oxidation of Diethyl Sulfide over TiO2: Kinetic Investigations and Catalyst Deactivation
Applied Catalysis B: Environmental. 2003. V.42. N1. P.77-87. DOI: 10.1016/S0926-3373(02)00217-5 WOS Scopus РИНЦ ANCAN OpenAlex
Gas-Phase Photocatalytic Oxidation of Diethyl Sulfide over TiO2: Kinetic Investigations and Catalyst Deactivation
Applied Catalysis B: Environmental. 2003. V.42. N1. P.77-87. DOI: 10.1016/S0926-3373(02)00217-5 WOS Scopus РИНЦ ANCAN OpenAlex
Dates:
| Submitted: | May 12, 2002 |
| Accepted: | Aug 22, 2002 |
| Published online: | Oct 25, 2002 |
| Published print: | Apr 15, 2003 |
Identifiers:
| Web of science: | WOS:000182337400008 |
| Scopus: | 2-s2.0-0037447115 |
| Elibrary: | 13426868 |
| Chemical Abstracts: | 2003:253918 |
| Chemical Abstracts (print): | 139:56918 |
| OpenAlex: | W2026117374 |