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<p>A novel nano composite SnO<sub>2</sub>@rGO using microwave was synthesized based on simple redox reaction as adsorbent for uranyl ions removal from wastewater. Successful anchoring of stannic ions onto the rGO nano sheets was attained by using GO and stannous chloride as precursors. The maximum adsorption of U(VI) ions was at near neutral pH. Langmuir and pseudo second order kinetic model were the best fit models. SnO<sub>2</sub>@rGO exhibited adsorption capacity of 555&#xa0;mg/g followed by GO of 244&#xa0;mg/g. Thus the composite adsorbent proved to be a cost-effective, selective and environmentally friendly procedure holding capability of scaling up for field application.</p>

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Innovative composite nano-adsorbent SnO2@rGO for efficient uranyl ion removal from aqueous solutions: a comparative study with GO and rGO

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年9月6日

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  • Roopa Bose,
  • Sajitha Nair,
  • Kuncham Kuntaiah,
  • Aswathy Sivanad

摘要

A novel nano composite SnO2@rGO using microwave was synthesized based on simple redox reaction as adsorbent for uranyl ions removal from wastewater. Successful anchoring of stannic ions onto the rGO nano sheets was attained by using GO and stannous chloride as precursors. The maximum adsorption of U(VI) ions was at near neutral pH. Langmuir and pseudo second order kinetic model were the best fit models. SnO2@rGO exhibited adsorption capacity of 555 mg/g followed by GO of 244 mg/g. Thus the composite adsorbent proved to be a cost-effective, selective and environmentally friendly procedure holding capability of scaling up for field application.