用于油/水分离的疏水纤维素基吸附剂
Karolina Tomkowiak1, Bartłomiej Mazela1, Zuzanna Szubert1
1Faculty of Forestry and Wood Technology, Poznań University of Life Sciences, Wojska Polskiego 28, 60-637 Poznań, Poland.
Molecules (Basel, Switzerland)
|October 16, 2024
概括
研究人员开发了可持续的,可生物降解的纤维素基吸附剂,用于油水分离. 这些材料具有高油吸收和低水吸收,为水处理挑战提供环保的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
- 绿色化学 绿色化学
背景情况:
- 越来越多的环境问题需要可持续的替代材料合成材料的石油水分离.
- 基于纤维素的吸收剂是环保的,但需要增强的疏水性,以实现高效的油水分离应用.
- 开发可生物降解材料对于应对污染和促进循环经济原则至关重要.
研究的目的:
- 为了使来自Kraft和BCTMP纸的纤维素基吸附剂水.
- 评估化和AKD技术在增强疏水性能的有效性.
- 评估改性纤维素吸附剂在油水分离和水蒸气吸收方面的性能.
主要方法:
- 基于纤维素的吸附剂是从Kraft和BCTMP纸中制备的.
- 使用甲基trimethoxysilane (MTMOS),n-octyltriethoxysilane (NTES) 和N-(2-Aminoethyl) -3-aminopropyltrimethoxysilane (AATMS) 的化技术和基二聚合物 (AKD) 技术实现了水化.
- 测量了水接触角度,水吸附能力,油吸附能力和水蒸气吸收能力.
主要成果:
- 在120°和140°之间的水接触角下成功传递了疏水性质.
- 显著降低水吸附能力至1g/g以下,同时保持高油吸附能力 (19-28g/g).
- 用MTMOS和AATMS化样本显示,水蒸气吸收 (3-6%) 的减少最为显著.
结论:
- 化纤维素基吸附剂显示出作为石油水分离的可持续材料的巨大潜力.
- 这些材料为传统合成吸附剂提供了一个环保的替代品,为更清洁的水处理解决方案做出了贡献.
- 该研究强调了化技术在为环境修复应用量身定制纤维素特性方面的有效性.
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