Peculiarities of sorption isotherm and sorption chemisms of caesium by mixed nickel-potassium ferrocyanide based on hydrated titanium dioxide / Voronina A. V.,Semenishchev V. S.,Nogovitsyna E. V.,Betenekov N. D. // JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY. - 2013. - V. 298, l. 1. - P. 67-75.

ISSN/EISSN:

0236-5731 / нет данных

Type:

Article

Abstract:

Sorption isotherm of caesium from tap water by mixed nickel-potassium ferrocyanide based on hydrated titanium dioxide is obtained for a wide range of concentrations of caesium. It is shown that there are three types of specificity to caesium sorption sites in this sorbent. Sorption chemisms of caesium are studied, factors conditioned high sorption capacity of the sorbent are revealed. It is shown that occupation of sorption sites I and II is well approximated by Langmuir equilibrium and this process can be described within the bounds of theory of ion exchange. The expected sorption chemism of caesium by sorption sites III at high concentrations of caesium (> 50 mg L-1) is precipitation of mixed nickel-caesium ferrocyanide in pore space of the sorbent.

Author keywords:

Sorption; Radionuclide; Ferrocyanide; Isotherm; Ion exchange; Kinetics COMPOSITE SORBENTS

DOI:

10.1007/s10967-013-2440-z

Web of Science ID:

ISI:000324546100010

Соавторы в МНС:

Другие поля

Поле	Значение
Month	OCT
Publisher	SPRINGER
Address	VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
Language	English
Keywords-Plus	COMPOSITE SORBENTS
Research-Areas	Chemistry; Nuclear Science \& Technology
Web-of-Science-Categories	Chemistry, Analytical; Chemistry, Inorganic \& Nuclear; Nuclear Science \& Technology
Author-Email	av.voronina@mail.ru vovius82@mail.ru
ResearcherID-Numbers	Betenekov, Nickolay/A-9344-2014 Voronina, Anna/A-9326-2014 Semenishchev, Vladimir/A-9303-2014
Funding-Acknowledgement	Russian Federal task program ``Scientific and pedagogical personnel of innovation Russia{''} {[}14.A18.21.0313]
Funding-Text	This work was performed with financial support of Russian Federal task program ``Scientific and pedagogical personnel of innovation Russia{''} for 2009-2013{''
Number-of-Cited-References	34
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	32
Journal-ISO	J. Radioanal. Nucl. Chem.
Doc-Delivery-Number	219XX