An X-ray photoelectron study of the interaction of uranyl group with sulfosuccinyl chitosan

Autor:	Yu. A. Teterin, E. V. Rumyantseva, A. Yu. Teterin, A. N. Veleshko, Kirill E. Ivanov, A. N. Levov, V. P. Varlamov, I. E. Veleshko, Konstantin I. Maslakov
Rok vydání:	2012
Předmět:	Radical Inorganic chemistry technology industry and agriculture X-ray chemistry.chemical_element Uranium Uranyl Ion Chitosan chemistry.chemical_compound chemistry X-ray photoelectron spectroscopy Group (periodic table) Polymer chemistry Physical and Theoretical Chemistry
Zdroj:	Radiochemistry. 54:122-127
ISSN:	1608-3288 1066-3622
DOI:	10.1134/s1066362212020038
Popis:	Interaction of uranium with low-molecular-weight sulfosuccinyl chitosan (SSLMWC) from sulfate solutions was studied by X-ray photoelectron spectroscopy. The interaction involves formation of complexes with the uranyl group on the SSLMWC surface. The equatorial plane of these complexes can contain nitrogen atom of the amino group and oxygen atoms of the sulfato and sulfo groups SO42− and -SO3H, carboxy groups, and free hydroxy groups. On keeping the complex in a vacuum, two chemically nonequivalent states of U ions, U4+ and UO22+, are observed. The U4+ formation in solid U-containing samples of chitosan and SSLMWC is attributed to the radical reaction of the UO22+ reduction with the primary hydroxy group of chitosan in a vacuum of the spectrometer under the action of X-ray radiation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::db26aa5f45806e81889aaf83bc10db4e https://doi.org/10.1134/s1066362212020038 Zobrazit plný text záznamu Full text from SpringerLink