相关实验视频

Updated: Jun 4, 2025

Removal of Arsenic Using a Cationic Polymer Gel Impregnated with Iron Hydroxide

Removal of Arsenic Using a Cationic Polymer Gel Impregnated with Iron Hydroxide

Published on: June 28, 2019

经过化/三乙烯胺改性作为一种高效的吸附剂,用于选择性吸附离子染料

Kriti¹, Kiran Kumar¹, Ghanshyam S Chauhan¹

¹Department of Chemistry, Himachal Pradesh University, Summerhill, Shimla, Himachal Pradesh 171005, India.

International journal of biological macromolecules

|January 1, 2025

概括

研究人员开发了一种新型的阴离子吸附剂 (TPsy),用于有效地去除MO和CR等离子染料. 这种可持续材料实现了高吸附能力和可回收性,为染料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
环境化学环境化学
绿色化学绿色化学

背景情况:

开发可持续吸附剂对于环境修复至关重要.
普西是一种天然的阳离子多糖体,需要进行修改以获得高效的阳离子染料吸附.
表面电荷修改是提高吸附剂性能的一个关键策略.

研究的目的:

从天然中合成一种新型的基离子基吸附剂 (TPsy).
评估TPsy在吸附阳离子染料 (MO和CR) 的效率.
研究TPsy的吸附机制,动力学和再生能力.

主要方法:

两步合成:用psyllium环氧化,然后用triethylamine进行四度化.
使用甲基色 (MO) 和刚果红色 (CR) 作为离子染料的吸附实验.
吸附动力学 (伪二次) 和异温的分析 (Langmuir).

主要成果:

合成的TPsy表现出来自阴离子的阴离子表面电荷 (PZC = 6.23) (PZC = 2.25).
在70分钟内,MO的最大吸附百分比为93.94%和CR的最大吸附百分比为94.44%.
获得了MO的223.71 mg/g和CR的260.41 mg/g的高吸附能力 (q_m).
其他Psy在12个吸附-脱附周期中表现出极好的再生能力.

结论:

的四度化有效地将其转化为离子染料的高效的阴离子吸附剂.
TPsy吸附剂显示出可持续和经济有效地从废水中去除染料的巨大潜力.
静电吸引和键是驱动吸附过程的关键机制.

关键词:

无离子染料去除法无离子染料去除法氧化过氧化过程中的氧化.这种植物叫Psyllium.隔离四级是指隔离四级.三乙烯胺的三乙烯胺污水处理污水处理污水处理

更多相关视频

Activation and Conjugation of Soluble Polysaccharides using 1-Cyano-4-Dimethylaminopyridine Tetrafluoroborate CDAP

Activation and Conjugation of Soluble Polysaccharides using 1-Cyano-4-Dimethylaminopyridine Tetrafluoroborate CDAP

Published on: June 14, 2021

A Convenient Method for Extraction and Analysis with High-Pressure Liquid Chromatography of Catecholamine Neurotransmitters and Their Metabolites

A Convenient Method for Extraction and Analysis with High-Pressure Liquid Chromatography of Catecholamine Neurotransmitters and Their Metabolites

Published on: March 1, 2018

相关概念视频

Ion Exchange

Ion Exchange

Ion exchange chromatography separates charged molecules from a solution by reversibly exchanging them with mobile, or 'active', ions associated with the oppositely charged stationary phase. This method can be used to separate ions, soften and deionize water, and purify solutions. The polymers comprising the ion-exchange column are high-molecular-weight and chemically stable polymers, crosslinked to be porous and essentially insoluble. They are also functionalized with either acidic or...

Analyte Adsorption and Distribution

Analyte Adsorption and Distribution

In certain chromatographic separations, solutes transfer between the mobile phase and the stationary phase via sorption, which typically refers to the process of adsorption. For many chromatographic systems, the sorption process often depends on the polarity of the compounds—an expression of the overall dipole moment within the molecule. During the separation process, there is competition between the solute and solvent for adsorption to the stationary phase. Highly polar compounds and...