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从水溶液中快速有效地去除甲蓝染料,使用提取物修饰的Zn-Al LDH

Mojtaba Bagherzadeh¹, Ghazal Salehi¹, Navid Rabiee²

¹Department of Chemistry, Sharif University of Technology, P.O. Box 11155-3615, Tehran, Iran.

|December 25, 2023

概括

这项研究增强了分层双氧化物 (LDHs),以有效地从水中去除甲蓝染料. 修改后的Zn-Al LDH@ext具有卓越的吸附能力和稳定性,提供可持续的水处理解决方案.

科学领域:

环境科学环境科学
材料科学材料科学材料科学
化学化学化学

背景情况:

甲蓝 (MB) 等合成染料造成的水污染是全球环境的一个重大问题.
层状双氧化物 (LDHs) 作为染料去除的吸附剂被探索,但它们的效率和稳定性可能是有限的.

研究的目的:

为了提高LDH的吸附能力和稳定性,用于从水溶液中去除甲蓝染料.
通过含有化合物的提取物修改Zn-Al LDH的有效性.

主要方法:

使用包括FT-IR,XRD,SEM,TEM,TGA,EDS,BET,BJH,AFM和UV-Vis DRS在内的技术合成和表征修饰的Zn-Al LDH (Zn-Al LDH@ext).
吸附实验,以评估在不同条件下 (pH,吸附剂剂量) 的MB去除效率.
分析吸附动力学使用Langmuir,Freundlich,Temkin等热量和伪一阶,伪二阶,粒子内部扩散和Elovich模型.

主要成果:

与原始的LDH相比,Zn-Al LDH@ext表现出显著更高的吸附能力和MB的稳定性,并改善了MB的稳定性.
确定了MB去除的最佳条件是pH7和0.7g的吸附剂剂量.
吸附数据最适合于特姆金异温和伪二次运动模型,表明化学吸附机制.

结论:

从提取物中修改LDH的化合物有效地提高了它们对甲基蓝吸附的性能.
开发的Zn-Al LDH@ext为处理染料污染水提供了一个有希望的,稳定的和具有成本效益的吸附剂.
这项研究为可持续的环境修复提供了对先进材料的新见解.

关键词:

吸附方式吸附方式吸附方式共同降水是指共同降水.有层的双氧化物.甲基烯蓝色是什么颜色

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