新型吸附剂铜基铂对放射性碘的吸附研究

Study of New Adsorbent Platinum-coated Copper for Radioactive Iodine

摘要: 通过测定铜基铂对放射性碘的吸附和洗脱性能，探索铂对铜基铂（PCC）性能的影响。在含有亚硫酸钠的稀硫酸介质中，采用柱层析技术测定了PCC对I^-的吸附容量、洗脱效率。结果表明：氯铂酸用量在2 mL时合成的PCC对I^-的工作吸附容量可达0.224 mg/g（I与Cu的质量比），吸附效率大于99%。以15 mL 0.1mol/L氢氧化钠溶液洗脱铜基铂，洗脱效率在95%以上。

Abstract: The adsorption and elution properties of platinum-coated copper (PCC) for radioactive iodine have been revealed and the effects of platinum on the performance of PCC were explored. In sulfuric acid medium containing sodium sulfite, the adsorption capacity, elution efficiency of PCC and the effect of platinum on PCC were determined by column chromatography. The results showed that the adsorption capacity of PCC prepared with 2 mL chloroplatinic acid or more for I^- was up to 0.224 mg/g with the adsorption efficiency of more than 99% while the elution efficiency was more than 95% by 15 mL 0.1 mol/L sodium hydroxide solution.