Abstract
A novel phenol formaldehyde crown ether adsorbent PS@DB18C6 for the separation of Zn isotopes was synthesized by grafting of dibenzo-18-crown-6 (DB18C6) onto polystyrene (PS) particles with phenol formaldehyde. In batch adsorption experiments, the highest isotope discriminations (Δ66Zn = 38.8, Δ68Zn = 75.0) was obtained in 200 ppm Zn(II) acetone solution at 10 °C. Through chromatographic experiments, the separation coefficients of 5 m migration distance are 6.85 × 10–4 and 1.507 × 10–3. for the isotopic pairs of 66Zn/64Zn, 68Zn/64Zn respectively at 25 °C and the flow rate of feed solution was 8.04 ml/h. Therefore, the developed PS@DB18C6 composite would be a promising adsorbent for preparation of 64Zn depleted zinc by chromatographic separation.
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This work was supported by the National Natural Science Foundation of China [12275177, 11975152].
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YX: methodology, data curation, writing—original draft. JZ: writing—review and editing, supervision, project administration, funding acquisition. XS: investigation. FL: investigation. JZ: investigation. YH: investigation. JC: test.
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Xue, Y., Zu, J., Su, X. et al. A synthesis of novel phenol formaldehyde type dibenzo-18-crown-6 resin for Zn(II) and zinc isotope separation. J Radioanal Nucl Chem 333, 519–530 (2024). https://doi.org/10.1007/s10967-023-09271-y
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DOI: https://doi.org/10.1007/s10967-023-09271-y