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金属框架功能化与基组和酸盐复合物吸附刚果红色的金属框架

Botong Chen¹, Yanhui Li², Yan He¹

¹College of Mechanical and Electrical Engineering, Qingdao University, 308 Ningxia Road, Qingdao 266071, China.

International journal of biological macromolecules

|February 17, 2025

概括

一种新的MIL-88B-NO2/CS气凝有效地从水中去除了刚果红色染料. 这种可重复使用的吸附剂具有很高的吸附能力和高效的染料去除,为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
纳米技术纳米技术

背景情况:

染料污染对环境构成重大挑战,传统吸附剂在效率和可重复使用性方面存在局限性.
金属有机框架 (MOF) 具有优良的性能,但由于其粉状形式,对于实际的废水应用而言受到阻碍.
开发有效且易于分离的吸附剂对于解决染料污染至关重要.

研究的目的:

为了合成一种新的基功能化的MIL-88B (MIL-88B-NO2) 材料.
制造MIL-88B-NO2/Chitosan (CS) 气凝,用于增强染料吸附.
调查用于清除刚果红 (CR) 染料的开发型气凝的吸附性能,机制和可重复使用性.

主要方法:

MIL-88B被用基功能化,产生了MIL-88B-NO2,显著增加了它的表面积.
MIL-88B-NO2与酸盐结合,形成MIL-88B-NO2/CS气凝,使其易于分离.
进行了吸附实验,以确定刚果红的去除能力,动力学和机制.

主要成果:

MIL-88B-NO2材料的特定表面积为660.98 m2/g,比原始的MIL-88B.提高了80%.
对于刚果红色,MIL-88B-NO2/CS气凝的最大吸附能力为878.8mg/g.
吸附遵循伪二次动力学和Sips模型,由 π-π 结合,静电吸引和键驱动.

结论:

MIL-88B-NO2/CS气凝是一种高效且可重复使用的吸附剂,用于清除刚果红色染料.
气凝结构克服了与传统MOF粉末相关的分离挑战.
这种材料在处理染料污染废水方面具有很大的实际应用潜力.

关键词:

吸附方式吸附方式吸附方式基托桑是一种酸盐.刚果红刚果红刚果红在MIL-88B-NO中,MIL-88B-NO是MIL-88B-NO的第一个代号.

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