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Pore structure and sorption characterization of titanosilicates obtained from concentrated precursors by the sol–gel method

机译：通过溶胶 - 凝胶法从浓缩前体获得的钛硅酸盐的孔结构和吸附表征

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摘要

A modified approach using the sol–gel synthesis of titanosilicate (TiSi) with a developed pore structure under relatively mild synthesis conditions was developed. To identify the controlling factors for the preparation of gels with the desired properties, the influences of the synthesis parameters on the structure and sorption capacity of the materials were studied. The chosen synthesis conditions allowed the preparation of TiSi xerogels with a high decontamination factor for both Sr ~(2+) and Cs ~(+) . Effects of competitive ions on the separation factors, distribution and selectivity coefficients were studied from different background solutions containing Sr ~(2+) and Cs ~(+) simultaneously. It could be shown that it is possible to produce TiSi gels with developed pore structures that are capable of removing Sr ~(2+) and Cs ~(+) from complex aqueous solutions.
机译：开发了在相对温和的合成条件下具有发育孔隙结构的溶胶 - 凝胶合成钛硅酸盐（TISI）的改性方法。为了鉴定具有所需性质的凝胶的控制因子，研究了合成参数对材料结构和吸附能力的影响。所选择的合成条件允许制备具有高净化因子的TISI Xerogels，用于Sr〜（2+）和Cs〜（+）。从含有Sr〜（2+）和Cs〜（+）的不同背景溶液研究了竞争性离子对分离因子，分布和选择性系数的影响。可以表明，可以产生具有发育孔结构的TISI凝胶，其能够从复合水溶液中除去Sr〜（2+）和Cs〜（+）。

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