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<p>The aim of this study was to develop a simple, effective and low-cost route for synthesis a high-performance adsorbent using an industrial waste stream, namely a titanyl sulfate solution, as a precursor. The obtained titanium silicate material exhibited a poorly crystalline structure composed of nano-enabled agglomerates with the sizes of 18–40&#xa0;nm and a mesoporous structure with a specific surface area of 144&#xa0;m²/g. The material demonstrated high efficiency in the removal of cesium and strontium ions from aqueous solutions, with maximum adsorption capacities of 1.8 and 2.2 meq/g for Cs⁺ and Sr²⁺, respectively. The adsorption behavior was well described by the Langmuir and Langmuir–Freundlich isotherm models, indicating favorable adsorption characteristics. Notably, the adsorption performance is comparable to that of analogous materials synthesized from expensive reagents via more complex procedures. Combined with favorable kinetics, these results highlight the potential of the developed material for practical application in water treatment and demonstrate the value of industrial waste utilization for the design of efficient adsorbents.</p>

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High-performance titanium silicate adsorbent material derived from waste of industrial process

  • 期刊论文

  • 发表日期：

    2026年5月25日

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  • Iryna Romanova,
  • Dmytro Tarnovsky,
  • Olena Diyuk

摘要

The aim of this study was to develop a simple, effective and low-cost route for synthesis a high-performance adsorbent using an industrial waste stream, namely a titanyl sulfate solution, as a precursor. The obtained titanium silicate material exhibited a poorly crystalline structure composed of nano-enabled agglomerates with the sizes of 18–40 nm and a mesoporous structure with a specific surface area of 144 m²/g. The material demonstrated high efficiency in the removal of cesium and strontium ions from aqueous solutions, with maximum adsorption capacities of 1.8 and 2.2 meq/g for Cs⁺ and Sr²⁺, respectively. The adsorption behavior was well described by the Langmuir and Langmuir–Freundlich isotherm models, indicating favorable adsorption characteristics. Notably, the adsorption performance is comparable to that of analogous materials synthesized from expensive reagents via more complex procedures. Combined with favorable kinetics, these results highlight the potential of the developed material for practical application in water treatment and demonstrate the value of industrial waste utilization for the design of efficient adsorbents.