Effect of mineralizer and synthesis duration on sorption properties of sitinakite and ivanyukite-Reference-Cited by-同舟云学术

Effect of mineralizer and synthesis duration on sorption properties of sitinakite and ivanyukite

Published:2024-05-15 Issue:3 Volume:0 Page:20-29
ISSN:2712-7761
Container-title:Vestnik of geosciences
language:en
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Author:

Perovskiy I¹,Panikorovskii T.²¹,Shushkov D¹

Affiliation:

1. FSBI FIC "Komi Scientific Center of the Ural Branch of the Russian Academy of Sciences"

2. Laboratory of Nature-Inspired Technologies and Environmental Safety of the Arctic, Nanomaterial Research Center of the Kola Science Centre

Abstract

Titanosilicates with the structure of sitinakite and ivanyukite were synthesized with the use of enrichment wastes of quartz-leucoxene concentrate (Yarega deposit, Komi Republic) by autoclave method. It was found that using a mixture of mineralizer KOH and NaOH at a concentration of 0.15 and 1 mol/l, K-Na sitinakite was formed. Increasing the concentration of KOH to 0.45 mol/L and decreasing NaOH to 0.7 mol/L led to crystallization of ivanyukite. The obtained titanosilicates are characterized by high sorption activity towards Sr2+ and Cs+ cations. Sorption capacity of K-Na sitinakite and ivanyukite for Sr2+ was 95–110 and 102–114 mg/g, respectively. The Cs+ sorption capacity for K-Na sitinakite is 240 mg/g, the sorption capacity for ivanyukite is much higher — 370–380 mg/g. It was shown that the differences in the sorption capacity of K-Na sitinakite and ivanyukite are caused by the features of the crystal structure.

Publisher

Komi SC UB RAS

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