从水溶液中吸附着染料,使用以酸为基础的材料与离子液体功能化:酸7作为研究案例
Jean C B Vieira1, Clarissa P Frizzo2, Hermínio C de Sousa3
1NUQUIMHE, Department of Chemistry, Federal University of Santa Maria, 97105-900, Santa Maria, Brazil; CERES, Department of Chemical Engineering, University of Coimbra - Polo II, 3030-790, Coimbra, Portugal.
International journal of biological macromolecules
|January 17, 2026
概括
一种新型吸附剂ILCS-CS-Glu有效地从废水中去除阴离子染料. 这种基于酸盐的材料具有高容量,在pH值和盐度之间具有稳定性,并可用于织废水处理.
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 织行业的废水由于持续的染料污染给环境带来了挑战.
- 传统的染料去除方法往往缺乏效率,可扩展性或可持续性.
- 奇托 (CS) 和离子液体 (IL) 作为吸附材料具有前景,但需要优化去除染料.
研究的目的:
- 开发和表征一种新的复合吸附剂ILCS-CS-Glu,用于高效的离子染料去除.
- 为了评估ILCS-CS-Glu对酸7 (AO7) 的吸附性能,动力学和热力学.
- 评估吸附剂的稳定性,可重复使用性和适用于真实织工业废水中的应用性.
主要方法:
- 将一个离子液体 ([C8MIMBr]Br) 移植到一个酸盐基质上,与未经修改的CS混合,并与甲交叉连接.
- 吸附实验以确定最大吸附能力,pH值和离子强度的影响.
- 动力学,同热性,脱吸和再生研究,以了解吸附机制和材料稳定性.
主要成果:
- 对于AO7.7,ILCS-CS-Glu获得了292 mg/g的高最大吸附能力.
- 在广泛的pH范围 (3-9) 和离子强度 (高达1.0M NaCl) 中保持了高吸附效率 (>90%).
- 该吸附剂在多个循环中显示出出色的可重复使用性和稳定性,在织废水中去除了83%的染料.
结论:
- ILCS-CS-Glu是一种高效,稳定,可重复使用的阳离子染料吸附剂.
- 复合材料显示出可持续织废水处理的巨大潜力.
- 它在不同pH值和盐度条件下的性能使其成为工业应用的坚固解决方案.
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