Sol–gel synthesized titanosilicates for the uptake of radionuclides

Oleksiienko, Olga

doi:10.1016/b978-0-12-819216-0.00005-9

Cited by 3 publications

(1 citation statement)

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“…Other interesting examples of materials with useful applications in the field of sorption are the synthetic analog of the sitinakite mineral [14,15]-CTS, the alkali cation analogs of the pharmacosiderite mineral (KFe 4 (AsO 4 )(OH) 4 •7H 2 O) [16,17]-GTS-1 [18,19], and the ivanyukite mineral [20,21]-SIV [18,[22][23][24]. All these synthetic materials have attracted interest in the fields of catalysis [25,26], adsorption [27], separation and ion exchange [15,20,[28][29][30][31] due to their branched channel system in the crystal structure with sufficiently wide internal channels (Figure 1). All of these materials are of the pharmacosiderite type and have a similar crystalline structure and morphology.…”

Section: Introductionmentioning

confidence: 99%

Microwave-Assisted Synthesis of Titanosilicates Using a Precursor Produced from Titanium Ore Concentrate

Kalashnikova,

Gryaznova,

Baranchikov

et al. 2023

ChemEngineering

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Titanosilicates comprise a broad class of materials with promising technological applications. The typical obstacle that restricts their industrial applicability is the high manufacturing cost due to the use of specific organotitanium precursors. We herein report a new approach to the synthesis of titanosilicates using an inexpensive inorganic precursor, ammonium titanyl sulfate (ATS or STA), (NH4)2TiO(SO4)2∙H2O. The latter is an intermediate in the processing of titanium-bearing concentrates produced from apatite-nepheline ores. In this paper, the new synthetic approach is exemplified by the microwave-assisted synthesis of IONSIVE-911, one of the most effective Cs-ion scavengers. The method can be modified to synthesize various titanosilicate compounds.

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