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在纤维素生物材料上使用薄酸聚氨酸涂层去除阳离子染料

Karima Ferchichi¹, Amaini Chouchaine¹, Noureddine Amdouni¹

¹Laboratoire de Recherche: Caractérisations, Applications et Modélisation de Matériaux, Université de Tunis El Manar, Faculté des Sciences de Tunis, Campus Universitaire El Manar, Tunis 2092, Tunisia.

|April 15, 2024

概括

新型聚氨酸移植的波西多尼亚纤维有效地从水中去除红色染料. 这些生物吸附剂具有快速的动力学和高的结合能力,为染料废水处理提供了一个有前途的解决方案.

科学领域:

材料科学材料科学材料科学
环境化学环境化学
聚合物科学聚合物科学

背景情况:

红 (PSP) 是一种常见于工业废水中的离子染料.
有效地去除像PSP这样的染料对于环境保护至关重要.
开发高效和可持续的吸附剂是水处理的一个关键挑战.

研究的目的:

通过将聚氨酸 (PANI) 接种在波西多尼亚 (POS) 纤维上,开发新的吸附材料.
为了研究这些POS@PANI材料从水溶液中去除红 (PSP) 的吸附效率.
描述合成吸附剂的结构性质和结合亲和力.

主要方法:

通过共聚合,合成聚氨接种的波西多尼亚纤维 (POS@PANI).
在POS@PANI-ES和POS@PANI-EB吸附剂的特性.
吸附实验以确定PSP的结合百分比,动力学和结合能力.
将实验数据与Langmuir和Volmer吸附模型相匹配.

主要成果:

在15分钟内,POS@PANI-ES和POS@PANI-EB显示了PSP的快速吸附,结合率分别为97%和50%.
对于PSP的吸附能力是POS@PANI-ES的71.5μmolg-1和POS@PANI-EB的37.8μmolg-1.
吸附遵循兰迈尔和沃尔默模型,提供热力学参数.
在中等盐度下,吸附效率仍然很高 (>80%),但在较高的NaCl和CaCl2度下降.

结论:

波西多尼亚纤维是有效的生物吸收剂,可以去除红色.
与POS@PANI-EB.相比,POS@PANI-ES表格具有更高的吸附性能.
这些新材料为染料污染的废水处理提供了可持续和高效的方法.

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