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首页> 外文期刊>Journal of Hazardous Materials >Construction of hydrophobic interface on natural biomaterials for higher efficient and reversible radioactive iodine adsorption in water
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Construction of hydrophobic interface on natural biomaterials for higher efficient and reversible radioactive iodine adsorption in water

机译：在天然生物材料上构建疏水性界面，以在水中实现更高效率和可逆的放射性碘吸附

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摘要

For the pollution of radioactive materials, it is of great importance to develop efficient adsorbents for radioactive iodine adsorption in aqueous solution. In this work, a simple and green strategy was developed to construct hydrophobic surface on natural cotton fibers (n-CF) based on organic-soluble carbon dots (OCDs) for the first time. The results demonstrated the successful constructed hydrophobic n-CF@OCDs expressed excellent stability and selectivity for iodine (12) adsorption in water. The maximum adsorption capacity for I-2 on n-CF@OCDs is calculated to be 190.1 mg g(-1), which is about 6.8 times higher than that of n-CF (28.1 mg g(-1)), this highly I-2 adsorption efficiency should be attributed to the hydrophobic properties of adsorbent. The adsorption mechanism was also discussed in this work. In addition, the adsorbed I-2 could be desorbed easily with a simple reductive process at ambient conditions, which can lead to not only the restore of I-2 but also the recycling of adsorbent, illustrating their good practicability. Furthermore, this universal strategy can also be used for construction of hydrophobic surface on various natural biomaterials, demonstrating its potential application in constructing of hydrophobic surface and used for the adsorption and removal of nonpolar pollutions or radioactive waste in aqueous solutions.
机译：对于放射性物质的污染，开发用于水溶液中放射性碘吸附的有效吸附剂非常重要。在这项工作中，开发了一种简单而绿色的策略，首次基于有机可溶性碳点（OCD）在天然棉纤维（n-CF）上构建疏水表面。结果表明，成功构建的疏水性n-CF @ OCDs对水中的碘（12）吸附具有出色的稳定性和选择性。 I-2在n-CF @ OCDs上的最大吸附能力经计算为190.1 mg g（-1），约为n-CF（28.1 mg g（-1））的6.8倍。 I-2的吸附效率应归因于吸附剂的疏水性。在这项工作中还讨论了吸附机理。另外，被吸附的I-2可以在环境条件下通过简单的还原过程容易地解吸，这不仅可以导致I-2的还原，而且可以导致吸附剂的再循环，从而说明其良好的实用性。此外，该通用策略还可以用于在各种天然生物材料上构建疏水表面，证明其在构建疏水表面中的潜在应用，并用于吸附和去除水溶液中的非极性污染物或放射性废物。

著录项

  • 来源
    《Journal of Hazardous Materials》 |2019年第15期|81-89|共9页
  • 作者

    Zheng Baozhan; Liu Xiaoxia; Hu Jing; Wang Fengyi; Hu Xuan; Zhu Yue; Lv Xu; Du Juan; Xiao Dan;

  • 作者单位

    Sichuan Univ, Coll Chem, Wangjiang Rd, Chengdu 610064, Sichuan, Peoples R China|Sichuan Univ, Coll Chem, Minist Educ, Key Lab Green Chem & Technol, Chengdu 610064, Sichuan, Peoples R China;

    Sichuan Univ, Coll Chem, Wangjiang Rd, Chengdu 610064, Sichuan, Peoples R China;

    Sichuan Univ, Coll Chem, Wangjiang Rd, Chengdu 610064, Sichuan, Peoples R China;

    Sichuan Univ, Coll Chem, Wangjiang Rd, Chengdu 610064, Sichuan, Peoples R China;

    Sichuan Univ, Coll Chem, Wangjiang Rd, Chengdu 610064, Sichuan, Peoples R China;

    Sichuan Univ, Coll Chem, Wangjiang Rd, Chengdu 610064, Sichuan, Peoples R China;

    Sichuan Univ, Coll Chem, Wangjiang Rd, Chengdu 610064, Sichuan, Peoples R China;

    Sichuan Univ, Coll Chem, Wangjiang Rd, Chengdu 610064, Sichuan, Peoples R China|Sichuan Univ, Coll Chem, Minist Educ, Key Lab Green Chem & Technol, Chengdu 610064, Sichuan, Peoples R China;

    Sichuan Univ, Coll Chem, Wangjiang Rd, Chengdu 610064, Sichuan, Peoples R China|Sichuan Univ, Coll Chem, Minist Educ, Key Lab Green Chem & Technol, Chengdu 610064, Sichuan, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Hydrophobic surface; Organic-soluble carbon dots; Natural biomaterials; Adsorption; Radioactive iodine;

    机译：疏水表面;有机可溶性碳点;天然生物材料;吸附;放射性碘;

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