应用化学

• 研究论文 •    下一篇

基于二肽的相选择胶凝剂对水中油脂和有毒染料的清污性能

周耀,罗紫晴,周佳伶,袁霖,李中燕   

  1. 湖南科技学院
  • 收稿日期:2020-03-16 修回日期:2020-04-21 发布日期:2020-09-21
  • 通讯作者: 李中燕
  • 基金资助:
    湖南省自然科学基金

Dipeptide-based Phase-selective Gelators for Removal of Oils and Toxic Dyes from Water

  • Received:2020-03-16 Revised:2020-04-21 Published:2020-09-21

摘要: 本文设计合成了一系列相选择胶凝剂(3a~3e), 并通过1H NMR,13C NMR和质谱对其结构进行了表征. 对目标化合物进性相选择凝胶性能试验,结果表明化合物3c在粉末状态下表现出出色的相选择胶凝能力,在室温下可通过摇晃从油水两相体系中快速除去苯,甲苯,二甲苯和汽油。另外,实验证明以3d-苄醇凝胶作为吸附剂可以实现有毒染料溶液的有效吸附,而且通过紫外/可见光谱实验可以对其纯化效果进行量化。操作简单和高效性的除污特点表明这些二肽胶凝剂在污水纯化处理中具有广阔的应用前景。

关键词: 二肽, 粉末, 相选择胶凝剂, 染料

Abstract: A series of phase-selective gelators (3a~3e) were synthesized and characterized by 1H NMR, 13C NMR and mass spectra. The phase-selective activity assay was carried out and the results showed that 3c possessed high gelling abilities in powder form for the removal of benzene, toluene, xylenes and petrol from their biphasic mixtures with water via a shaking process at room temperature. In addition, the efficient purification of toxic dye solutions has been realized by using 3d-benzyl alcohol gel as the adsorbent. UV/vis spectroscopy provides the quantification means for the estimation of the purification efficacy. The simple operation and high removal efficiency of the organic solvents from water indicate the promising applicability of these dipeptide gelators in water purification.

Key words: Dipeptide, Powder, Phase-selective gelator, Dye

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