相关实验视频

Updated: Sep 10, 2025

Preparation of Expanded Chitin Foams and their Use in the Removal of Aqueous Copper

Preparation of Expanded Chitin Foams and their Use in the Removal of Aqueous Copper

Published on: February 27, 2021

桑/蒙特莫里隆石/石墨烯氧化物复合材料用于从单元溶液,二元混合物和真实织废水中吸附染料:了解吸附相互作用

Anastasia D Meretoudi¹, Ioannis Kalampogias¹, Ioanna Koumentakou¹

¹Hephaestus Laboratory, School of Chemistry, Faculty of Sciences, Democritus University of Thrace, GR 65404 Kavala, Greece.

Langmuir : the ACS journal of surfaces and colloids

|August 19, 2025

概括

新型桑/蒙莫里隆石/石墨烯氧化物复合材料有效地从工业废水中去除有机染料. 这些可重复使用的材料具有很高的吸附能力和稳定性,为织行业的废水处理提供了可持续的解决方案.

科学领域:

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

背景情况:

工业废水中含有诸如反应黑5 (RB5) 和甲蓝 (MB) 等持久有机染料.
需要有效和可持续的方法来去除这些污染物,保护生态系统和人类健康.
桑和蒙莫里隆石是具有吸附潜力的天然聚合物,但它们的效率可以提高.

研究的目的:

为了合成和表征新奇的奇多/蒙莫里隆石 (CS/MT) 和奇多/蒙莫里隆石/石墨烯氧化物 (CS/MT/GO) 复合物.
评估这些复合材料的吸附性能,以从水溶液和实际工业废水中去除RB5和MB.
为了研究吸附动力学,同热,热力学和合成材料的可重复使用性.

主要方法:

使用三聚酸作为交叉链接剂合成CS/MT和CS/MT/GO复合珠.
使用FTIR,SEM,BET和XRD技术进行表征.
用不同的条件 (pH,染料度) 进行的吸附实验,并使用同热和动力模型进行分析.

主要成果:

与CS/MT (20.01 m2/g) 相比,CS/MT/GO的表面积更大 (44.61 m2/g).
CS/MT/GO实现了高吸附能力:RB5的222.35毫克/克,MB的203.98毫克/克.
在pH 2下,RB5的去除效率达到99.1%,在pH 12下,MB的吸附效率达到80.29%,吸附效率跟随弗洛伊德利希等温和PSO动力学,表明自发的,内热过程.

结论:

CS/MT/GO复合材料是高效,稳定和可重复使用的吸附剂,用于从废水中去除阳离子 (RB5) 和阴离子 (MB) 染料.
增强的GO表面积和特性有助于优越的吸附性能.
这些新型生物材料显示出工业废水处理应用的巨大潜力.

更多相关视频

Author Spotlight: Eco-friendly Photoluminescent Textile Authentication with Curcumin

Author Spotlight: Eco-friendly Photoluminescent Textile Authentication with Curcumin

Published on: December 22, 2023

Bridging the Bio-Electronic Interface with Biofabrication

Bridging the Bio-Electronic Interface with Biofabrication

Published on: June 6, 2012

相关概念视频

Complexation Equilibria: The Chelate Effect

Complexation Equilibria: The Chelate Effect

In complexation reactions, metal atoms or cations interact with ligands to form donor-acceptor adducts called metal complexes. Ligands that bind through one donor site are monodentate, ligands with two donor sites are bidentate, and those with more than two donor sites are polydentate ligands. For example, ethylene diamine is a bidentate ligand that binds through two nitrogen donor atoms, forming a five-membered ring. EDTA is a polydentate ligand that binds through four oxygen and two nitrogen...

Aryldiazonium Salts to Azo Dyes: Diazo Coupling

Aryldiazonium Salts to Azo Dyes: Diazo Coupling

The reaction of weakly electrophilic aryldiazonium (also called arenediazonium) salts with highly activated aromatic compounds leads to the formation of products with an —N=N— link, called an azo linkage. This reaction, presented in Figure 1, is known as diazo coupling and occurs without the loss of the nitrogen atoms of the aryldiazonium salt. Highly activated aromatic compounds such as phenols or arylamines favor the diazo coupling reaction. The coupling generally occurs at the...