可重复使用的氨基化木质素基水凝生物复合材料,用于在废水中有效吸收染料
Juan Díaz1, Karina Roa1, Andrés Boulett1
1Universidad de Santiago de Chile (USACH), Facultad de Química y Biología, Departamento de Ciencias del Ambiente, Santiago, Chile.
International journal of biological macromolecules
|February 10, 2025
概括
一种由氨基化木质素和P ((ClAPTA) 制成的新型生物复合物水凝显示出高的有机染料吸附. 这种材料在高效的净水应用中显示出出色的可重复使用性.
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:
- 有机染料在废水中带来了环境挑战.
- 开发高效的吸附剂对于水资源整治至关重要.
- 生物复合材料水凝提供了有前途的可持续解决方案.
研究的目的:
- 为了合成和表征一种新的生物复合材料水凝,用于增强有机染料吸附.
- 为了优化一个模型染料的吸附过程,alizarin red S.
- 评估吸附机制,动力学,热力学和水凝的可重复使用性.
主要方法:
- 氨基化木质素 (AL) 和聚3-烯胺烯) -三甲基化 (P(ClAPTA)) 生物复合物水凝的合成.
- 使用FTIR,TGA,SEM和元素分析进行表征.
- 通过因数设计和Box-Behnken设计优化吸附参数 (pH,温度,时间,质量比).
主要成果:
- 该P ((ClAPTA-AL) 组成显著影响着染料吸附.
- 在最佳条件下,阿利沙林红色S.的高吸附能力为102.1 mg g-1和最大吸附量为3889 mg g-1.
- 吸附遵循伪二次动力学,表明化学吸收,是自发的和内热的.
- 水凝在七个循环后保持了高吸附效率 (>81%),显示出出色的可重复使用性.
结论:
- 合成的生物复合物水凝是有机染料的有效吸附剂.
- 该材料具有有利的吸附特性和显著的可重复使用性.
- 这为废水处理和染料去除提供了一种可持续的方法.
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