| 摘要 |
FIELD: chemistry.SUBSTANCE: initial framework titanosilicate Na(Na,H)TiO[SiO]·2HO is processed with 0.01-0.4 M hydrochloric acid solution for 0.5-2 hours to produce crystalline layered titanosilicate Ti(OH)[SiO(OH)](HO). Further, it is modified by processing with 0.001-0.01 M silver nitrate or caesium chloride solution for no more than 24 hours at pH 6-12 while stirring. A titanosilicate solid phase is separated by centrifugation, washed with deionised water at solid:liquid = 1:(3-5) and dried at temperature 70-100°C. Crystalline layered titanosilicate (Me,H)TiO[SiO]·nHO is produced, wherein Me is silver or caesium, m = 0.1-1.0, n = 0.5-1.8.EFFECT: invention enables producing intercalated framework caesium and silver titanosilicates having high recoverability and iodine sorption capacity.4 cl, 5 ex |
