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This research introduces two novel materials for detecting trace antimony and cobalt in water. Material 1, combining polyvinyl alcohol and thioacetic acid, works with a spectrophotometer for Sb detection. Material 2, modified hydroxyethyl cellulose with sodium hydroxide, targets Co. Both materials show high adsorption capacities (232.56 μg/mg for Sb, 204.08 μg/mg for Co) and follow Langmuir and pseudo-second-order kinetics, suggesting efficient single-layer chemical adsorption. The study achieved optimal adsorption at pH 6 for Sb and pH 5 for Co. Using solid phase extraction, the materials concentrated Sb and Co from solutions at specific flow rates, with subsequent elution using 10% phosphoric acid. The process demonstrated low relative standard deviations (RSDs) for removal and recovery rates, indicating precision and high average recovery rates (97.42% for Sb, 57.14% for Co). The method proved simple, sensitive, and reproducible technique for environmental water analysis.

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Application Research of Novel Functional Materials for Trace Antimony and Cobalt Element Detection in Environmental Water Samples

  • 会议论文

  • 发表日期：

    2025年

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  • Weiqiang She,
  • Zhaocui Huo,
  • Chenyang Li,
  • Hong Zhang,
  • Yuhong Zhang,
  • Shengbin Li

摘要

This research introduces two novel materials for detecting trace antimony and cobalt in water. Material 1, combining polyvinyl alcohol and thioacetic acid, works with a spectrophotometer for Sb detection. Material 2, modified hydroxyethyl cellulose with sodium hydroxide, targets Co. Both materials show high adsorption capacities (232.56 μg/mg for Sb, 204.08 μg/mg for Co) and follow Langmuir and pseudo-second-order kinetics, suggesting efficient single-layer chemical adsorption. The study achieved optimal adsorption at pH 6 for Sb and pH 5 for Co. Using solid phase extraction, the materials concentrated Sb and Co from solutions at specific flow rates, with subsequent elution using 10% phosphoric acid. The process demonstrated low relative standard deviations (RSDs) for removal and recovery rates, indicating precision and high average recovery rates (97.42% for Sb, 57.14% for Co). The method proved simple, sensitive, and reproducible technique for environmental water analysis.