Scholarlink

<p>Efficient capture of radioactive iodine species is essential for nuclear accident preparedness and aqueous waste treatment, but remains a challenging task. Herein, a triangle imidazolium cyclophane is readily accessible by Friedel-Crafts reaction from benzimidazole precursor, which behaves as an efficient absorbent to quickly capture iodine vapor and its aqueous solution with a maximum adsorption capacity of 3.54 g g<sup>−1</sup>, exceeding most known macrocycles. Moreover, after 30 cycles of reuse, the material still maintained an iodine adsorption efficiency of over 84%. Mechanism investigations revealed that the cationic nature of imidazolium cyclophanes along with the cavities of the materials were responsible for its excellent adsorption ability towards iodine species.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Efficient and reversible iodine capture by imidazolium cyclophanes synergized by cationic effects

  • 期刊论文

  • 发表日期：

    2025年3月20日

查看全文
  • Qiongjie Chai,
  • Lixin Duan,
  • Yanzhe Ma,
  • Tianheng Hou,
  • Jie Tang,
  • Yane Zhang,
  • Tao Tu

摘要

Efficient capture of radioactive iodine species is essential for nuclear accident preparedness and aqueous waste treatment, but remains a challenging task. Herein, a triangle imidazolium cyclophane is readily accessible by Friedel-Crafts reaction from benzimidazole precursor, which behaves as an efficient absorbent to quickly capture iodine vapor and its aqueous solution with a maximum adsorption capacity of 3.54 g g−1, exceeding most known macrocycles. Moreover, after 30 cycles of reuse, the material still maintained an iodine adsorption efficiency of over 84%. Mechanism investigations revealed that the cationic nature of imidazolium cyclophanes along with the cavities of the materials were responsible for its excellent adsorption ability towards iodine species.