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基于纤维素的气凝用于高效的染料吸附和织废水处理中的油水分离

Jie Chen¹, Jialing Chen¹, Laijiu Zheng¹

¹Liaoning Provincial Key Laboratory of Supercritical CO(2) Waterless Dyeing, Dalian Polytechnic University, Liaoning 116034, China; Key Laboratory of Textile Science and Engineering, Liaoning Provincial Department of Education, Dalian Polytechnic University, Liaoning 116034, China.

International journal of biological macromolecules

|April 30, 2025

概括

新型细菌纤维素气凝,增强CMC和PDMS,有效地去除织品染料和分离油水混合物. 这些先进材料为环境修复和工业废水处理提供了有希望的解决方案.

科学领域:

材料科学材料科学材料科学
环境工程环境工程
化学工程是化学工程的重要组成部分.

背景情况:

织行业的废水由于不生物降解的染料和油,造成环境风险.
迫切需要创新和高效的处理解决方案来减轻污染.

研究的目的:

开发和描述新的基于细菌纤维素 (BC) 的气凝,用于染料吸附和油水分离.
评估复合气凝的性能,其中包括碳糖甲基纤维素 (CMC) 和聚二甲基 (PDMS).

主要方法:

使用简单的混合和冷干燥技术制造CMC/BC和PDMS/CMC/BC气凝.
气凝性质的表征,包括孔隙性,密度和机械强度.
对染料吸附能力,动力学和油吸附效率的评估.

主要成果:

复合气凝呈现出高性 (96%),低密度 (0.097 g/cm3) 和显著的机械强度 (0.70 MPa在80%的应变).
根据伪二阶动力学和朗穆尔异热模型,CMC/BC气凝实现了484mg/g的染料吸附能力,其去除率为96.80%,后者是伪二阶动力学和朗穆尔异热模型.
PDMS/CMC/BC-11气凝显示出高油吸附能力 (186.03g/g的石油) 和快速的油水分离 (<5秒).

结论:

开发的基于BC的复合气凝显示了环境修复应用的巨大潜力.
这些材料为处理染料污染的废水和从水中分离石油提供了有效的解决方案.
该研究强调了气凝在解决工业过程中的关键环境挑战方面的多功能性.

关键词:

气凝是一种气凝.细菌纤维素的细菌纤维素.染料吸附吸收方式水性-油性水性-油性石油与水分离的方法

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