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  1. 首页
  3. 研究领域
  5. 化学科学
  7. 物理化学
  9. 体和表面化学
  11. 基于素的新型阴阳性表面活性剂的生态评估和腐蚀抑制潜力
  1. 首页
  3. 研究领域
  5. 化学科学
  7. 物理化学
  9. 体和表面化学
  11. 基于素的新型阴阳性表面活性剂的生态评估和腐蚀抑制潜力

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基于素的新型阴阳性表面活性剂的生态评估和腐蚀抑制潜力

M Teresa García1, Ana de la Fuente1, Lourdes Pérez1

  • 1Surfactants and Nanobiotechnology Department, Institute for Advanced Chemistry of Catalonia, IQAC-CSIC, Jordi Girona 18-26, Barcelona 08034, Spain.

Journal of hazardous materials
|August 22, 2025

在PubMed 上查看摘要

概括
此摘要是机器生成的。

基于素的新型表面活性剂提供环保的抗菌解决方案. 这些化合物比传统的四级氨基表面活性剂 (QAC) 具有更高的生物降解性和较低的水中毒性,作为有效的腐蚀抑制剂.

科学领域:

  • 绿色化学
  • 材料科学
  • 环境科学

背景情况:

  • 传统的四级氨基表面活性剂 (QAC) 因其持久性和毒性而引起环境关注.
  • 开发可生物降解和少有毒的替代品对于可持续的化学应用至关重要.
  • 氨基酸衍生表面活性剂为创造环境良好的功能分子提供了有希望的途径.

研究的目的:

  • 合成和评估基于素的新型阴离子表面活性剂 (LANHCx) 作为抗菌剂.
  • 调查这些表面活性剂对环境的影响,特别是生物降解性和水生毒性.
  • 评估它们作为碳钢的腐蚀抑制剂的有效性.

主要方法:

  • 具有不同链长度的不对称双链表面活性剂的合成.
  • 使用CO2头空间测试进行有氧生物降解性评估.
  • 使用大夫尼亚大,阿利维布里奥·菲舍里,Tetraselmis chuii和Phaeodactylum tricornutum的标准测试进行水中毒性的评估.
  • 通过电化学阻抗光谱 (EIS) 确定腐蚀抑制效率.

主要成果:

  • 生物降解率与链长度有显著差异,在12 mg C/ L时为1-63%.
  • 在较高的度下,C6同类物呈现最小的降解,但在较低的度下有所改善.
关键词:
对水生有毒性生物降解防止腐蚀双链氨酸表面活性剂

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  • 与传统的QAC相比,水中毒性降低了一级以上.
  • LANHC6显示出有效的碳钢腐蚀抑制 (在0.5mM时80%),在低得多的度下表现优于DTAC.

    • 结论:

    • 与QAC相比,基于氨酸的表面活性剂具有可调节的生物降解性和降低的水生毒性.
    • 这些新型表面活性剂是有效的抗菌剂和腐蚀抑制剂.
    • 这些发现突显了氨基酸衍生表面活性剂在各种工业应用中作为环境更好的替代品的潜力.