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用表面活性剂修改的单尾和双尾阴离子和阳离子基酸水凝珠的吸附能力,用于从水溶液中去除PAH

Hina Kouser Qadri¹, Showkat Rashid¹, Arjumund Shaheen¹

¹Soft Matter Research Group, Physical Chemistry Section, Department of Chemistry, University of Kashmir, Hazratbal, Srinagar 190006, J&K, India.

Journal of environmental sciences (China)

|September 26, 2025

概括

表面活性剂修改的奇托桑水凝珠有效地从水中去除多环芳 (PAH). 双尾表面活性剂的修改显示出优越的吸附能力,提供环保的水处理解决方案.

科学领域:

环境化学环境化学
材料科学材料科学材料科学
聚合物科学聚合物科学

背景情况:

多环芳 (PAH) 是一种危险的环境污染物.
奇托 (CS) 水凝珠是潜在的吸附剂,但需要提高性能.
表面活性剂的修改可以提高水凝的吸附能力.

研究的目的:

为了研究单尾和双尾阴离子和阴离子表面活性剂修饰的奇托 (SMCS) 水凝珠的有效性,用于PAH去除.
评估CS和SMCS珠的结构,机械和吸附性能.
为了比较SMCS珠的吸附能力与不同的表面活性剂类型和链条长度.

主要方法:

素 (CS) 水凝珠被离子 (SDS,AOT) 和阴离子 (DTAB,DDAB) 表面活性剂修饰.
使用IR,EDX,风力测量和FESEM分析了结构和机械性能.
用CS和SMCS珠子进行了纳夫他林,阿塞纳夫他林和菲南特林的吸附实验.

主要成果:

由于增加了疏水性相互作用,SMCS珠子的PAH吸附能力明显高于未经修改的CS珠子.
所有珠子类型的吸附能力顺序是Phenanthrene > Acenaphthene > Naphthalene.
与单尾SMCS珠子相比,双尾SMCS珠子的吸附能力 (Qmax) 显著更高.
双尾CS-AOT和CS-DDAB珠子的纳夫他林,阿塞纳芬和的特定Qmax值在323.8至633.39毫克/克之间,优于其他水凝吸附剂.

结论:

表面活性剂的修改,特别是双尾表面活性剂,显著提高了素凝珠的PAH吸附性能.
开发的SMCS珠子提供了一种简单,环保和高效的方法,用于从水溶液中去除危险的PAH.
这种方法为水资源整治应用提供了一个具有成本效益的策略.

关键词:

吸附方式吸附方式吸附方式基托桑是一种酸盐.水凝是一种水凝.多环芳 (PAHs) 是一种多环芳.表面活性剂是一种表面活性剂.

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