Photocatalytic Oxidation of VX-Simulation Substance | Sciact - CRIS-system of Boreskov Institute of Catalysis

Photocatalytic Oxidation of VX-Simulation Substance Full article

Journal

Water Science and Technology
ISSN: 0273-1223 , E-ISSN: 1996-9732

Output data

Year: 2007, Volume: 55, Number: 12, Pages: 133-138 Pages count : 6 DOI: 10.2166/wst.2007.393

Tags

Chemical warfare agents, Cysteamine-S-phosphate, Mineralisation, Organsulphurous compounds, VX-gas

Authors

Koslova E. ^1,2 , Vorontsov A. ² , Rima G. ³ , Lion C. ⁴ , Preis S. ⁵

Affiliations

1	Novosibirsk State University, Lavrentiev Ave. 5, 630090 Novosibirsk, Russia
2	Boreskov Institute of Catalysis, Lavrentiev Ave. 5, 630090 Novosibirsk, Russia
3	Universite Paul Sabatier, 118 route de Narbonne, F-31062 Toulouse, France
4	Institut de Topologie et de Dynamique des Systemes de I’Universite Paris-7, 1, rue Guy de la Brosse, 75005 Paris, France
5	Lappeenranta University of Technology, Lappeenranta, FIN-53851, Finland

Funding (2)

1	North Atlantic Treaty Organization	SfP-981461
2	Academy of Finland	208134

Experimental studies of photocatalytic oxidation (PCO) of VX-gas simulation substance cysteamine-S-phosphate sodium salt (NaHPO3S-CH2-CH2-NH2, CPSS) at various initial concentrations and pH were undertaken. PCO ultimately resulted in complete mineralisation of CPSS. The PCO byproducts of CPSS include acetate, oxalate and trace amounts of formate ions. The formation rates of acetate and phosphate were equal to the rate of degradation of CPSS, which indicates easy breakage of P-S, C-S and C-N bonds. Sulphate was formed more slowly due to stepwise oxidation of reduced sulphur. Amino group, generally transformed to ammonia, was partially oxidised to nitrite and nitrate in alkaline media. The fastest mineralisation in terms of both TOC degradation and phosphate formation was observed in neutral media. Under neutral media conditions, the PCO rate increased linearly with the CPSS concentration increase. The maximum efficiency by TOC degradation was observed as large as 77 mg per Wh of incident UV flux with quantum efficiency 3.8%.

Koslova E. , Vorontsov A. , Rima G. , Lion C. , Preis S.
Photocatalytic Oxidation of VX-Simulation Substance
Water Science and Technology. 2007. V.55. N12. P.133-138. DOI: 10.2166/wst.2007.393 WOS Scopus РИНЦ ANCAN OpenAlex

Published print:

Jun 1, 2007

Web of science:	WOS:000248393400022
Scopus:	2-s2.0-34547702421
Elibrary:	13545536
Chemical Abstracts:	2007:1002414
Chemical Abstracts (print):	148:432491
OpenAlex:	W1978379077

DB	Citing
Web of science	3
Scopus	3
Elibrary	4
OpenAlex	4