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<p>This work reports the synthesis of a novel core-shell bisphenol A selective imprinted polymer (Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub>@NH<sub>2</sub>-BPA-MIP) via ultrasonic-assisted coprecipitation polymerization and employed as a selective magnetic candidate for bisphenol A removal from water samples. The application of ultrasonic waves lowers the time of polymerization reaction fivefold as compared to conventional heating. After successful synthesis, the magnetite-selective adsorbent was characterised using SEM and FTIR to assess its surface morphology and functionality. During this study, various variables that influenced the adsorption performance of the adsorbent were optimized, including adsorbent dose, pH of the medium, temperature, time, and analyte concentration, to achieve maximum adsorption. The adsorption pattern of the analyte on the adsorbent surface and reaction kinetics were best evaluated by the Langmuir model, followed by pseudo-second order. An excellent linear concentration range of (10–150&#xa0;µg/L), with a satisfactory low limit of detection (0.71&#xa0;µg/L), was achieved. The relative standard deviation (RSD) was found to be 3.9%. The design method was validated by the standard addition method. The design adsorbent was used for the removal of BPA from a real water system.</p> Graphical Abstract <p></p>

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Ultrasonic-assisted synthesis of magnetic molecular imprinted polymer as a potential candidate for selective removal of Bisphenol A from the water samples

  • 期刊论文

  • 发表日期：

    2026年4月11日

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  • Abdullah,
  • Mustafa Tuzen,
  • Aamna Balouch,
  • Mohib Ullah

摘要

This work reports the synthesis of a novel core-shell bisphenol A selective imprinted polymer (Fe3O4@SiO2@NH2-BPA-MIP) via ultrasonic-assisted coprecipitation polymerization and employed as a selective magnetic candidate for bisphenol A removal from water samples. The application of ultrasonic waves lowers the time of polymerization reaction fivefold as compared to conventional heating. After successful synthesis, the magnetite-selective adsorbent was characterised using SEM and FTIR to assess its surface morphology and functionality. During this study, various variables that influenced the adsorption performance of the adsorbent were optimized, including adsorbent dose, pH of the medium, temperature, time, and analyte concentration, to achieve maximum adsorption. The adsorption pattern of the analyte on the adsorbent surface and reaction kinetics were best evaluated by the Langmuir model, followed by pseudo-second order. An excellent linear concentration range of (10–150 µg/L), with a satisfactory low limit of detection (0.71 µg/L), was achieved. The relative standard deviation (RSD) was found to be 3.9%. The design method was validated by the standard addition method. The design adsorbent was used for the removal of BPA from a real water system.

Graphical Abstract