Mechanism of strontium sorption by the mixed nickel–potassium ferrocyanide based on hydrated titanium dioxide / Voronina A.V., Semenishchev V.S. // Journal of Radioanalytical and Nuclear Chemistry. - 2016. - V. 307, l. 1. - P. 577-590.

ISSN:
02365731
Type:
Article
Abstract:
The influence of surface modification of hydrated titanium dioxide (HTD) by mixed nickel–potassium ferrocyanide (NPF) phase on its selectivity for strontium and mechanism of strontium sorption was studied. It was shown that NPF-HTD sorbent possesses the same selectivity for strontium as the HTD sorbent, but higher static exchange capacity (SEC). The Henry distribution coefficient of strontium from a tap water with pH 7.8 ± 0.1 was 10(3.0 ± 0.3) L kg−1; the SEC, calculated according to Langmuir’s isotherm, was 140 mg g−1. Kinetic studies have shown that strontium sorption is limited by both internal and external diffusion as well as by the rate of chemical transformation of the NPF-HTD sorbent. © 2015, Akadémiai Kiadó, Budapest, Hungary.
Author keywords:
Ferrocyanide; Hydrated titanium dioxide; Radioactive waste; Sorbents; Sorption mechanism; Strontium
Index keywords:
ferrocyanide; nickel; potassium; strontium; titanium dioxide; Article; chemical analysis; chemical modification; chemical structure; concentration (parameters); controlled study; immobilization; pH me
DOI:
10.1007/s10967-015-4197-z
Смотреть в Scopus:
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84953368636&doi=10.1007%2fs10967-015-4197-z&partnerID=40&md5=f562e5f84eb9eba773bd128838086aad
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Link https://www.scopus.com/inward/record.uri?eid=2-s2.0-84953368636&doi=10.1007%2fs10967-015-4197-z&partnerID=40&md5=f562e5f84eb9eba773bd128838086aad
Affiliations Ural Federal University, Ekaterinburg, Russian Federation
Author Keywords Ferrocyanide; Hydrated titanium dioxide; Radioactive waste; Sorbents; Sorption mechanism; Strontium
Chemicals/CAS ferrocyanide, 13408-63-4, 13601-19-9; nickel, 7440-02-0; potassium, 7440-09-7; strontium, 7440-24-6; titanium dioxide, 1317-70-0, 1317-80-2, 13463-67-7, 51745-87-0
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Correspondence Address Voronina, A.V.; Ural Federal UniversityRussian Federation; email: av.voronina@mail.ru
Publisher Springer Netherlands
CODEN JRNCD
Language of Original Document English
Abbreviated Source Title J. Radioanal. Nucl. Chem.
Source Scopus