基于的多孔吸附剂,以有效地去除17α-乙乙二醇:有机功能和水矩阵的作用
Tiago Morais1,2, Diogo Pereira3, Geraldine Sequera1
1CICECO - Instituto de Materiais de Aveiro, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
ACS applied materials & interfaces
|January 29, 2026
概括
周期性半孔二氧化 (Ph-PMO) 有效地从水中去除激素破坏者17α-乙inylestradiol (EE2). 由于表面相互作用的增强,Ph-PMO在废水中表现出卓越的性能,特别是在更高的pH水平下.
科学领域:
- 环境化学环境化学
- 材料科学 材料科学 材料科学
- 水处理 处理水的方法
背景情况:
- 17α-乙inylestradiol (EE2) 是一种在水中发现的强烈内分泌干扰化合物.
- 传统的水处理方法往往不足以完全去除EE2.
- 基于的多孔吸附剂为有针对性的污染物去除提供了潜在的潜力.
研究的目的:
- 评估用于EE2去除的基吸附剂中有机功能的有效性.
- 为了研究pH和水矩阵对EE2吸附的影响.
- 为了比较MCM-41,乙烯-MCM-41和Ph-PMO在EE2修复中的性能.
主要方法:
- 使用不同EE2度的三种基吸附剂 (MCM-41,乙烯-MCM-41,Ph-PMO) 的吸附实验.
- 在超纯水中测试高达500毫克L-1的吸附剂剂量.
- 评估不同pH值 (5,7,9) 和水矩阵 (超纯水,缓冲水,废水废水) 的吸附性能.
- 吸附剂的特性,包括化学稳定性,零电荷点,疏水性和纹理性质 (表面积,孔积,孔径).
- 动力学研究以确定吸附平衡时间.
主要成果:
- 吸附剂度超过500毫克L-1并没有显著改善EE2的去除.
- 随着pH值的增加,Ph-PMO表现出增强的EE2吸附能力,在pH值9时达到94%.
- 乙烯-MCM-41在更高的pH值下显示EE2去除效率下降 (pH9时14%).
- 与乙烯-MCM-41相比,Ph-PMO在废水废水中表现优越.
- 观察到Ph-PMO的快速EE2吸附,在所有测试的矩阵中在5分钟内达到平衡.
结论:
- 在Ph-PMO中有机功能的均分布促进了与EE2的强烈表面相互作用 (π-π堆叠,疏水相互作用).
- -PMO是一种高效的吸附剂,可以从水中去除EE2,特别是在高级处理阶段和废水等具有挑战性的矩阵中.
- 这种依赖pH值的性能强调了根据水的条件进行吸附剂选择的重要性,以有效地去除内分泌干扰物.
相关概念视频
Role of Water in Human Biology
13.3K
Water is the one of the most significant components of the human body; it plays a crucial role in several physiological activities because of its unique physicochemical properties. Importantly, it helps to regulate body temperature and is the chief component of several body fluids.
Water's Solvent Properties
Since water is a polar molecule with slightly positive and slightly negative charges, ions and polar molecules can readily dissolve in it. Therefore, it is referred to as a solvent, a...
Water's Solvent Properties
Since water is a polar molecule with slightly positive and slightly negative charges, ions and polar molecules can readily dissolve in it. Therefore, it is referred to as a solvent, a...
13.3K
Role-Based Identity
204
Role-based identities are central to understanding how individuals navigate social environments by adopting distinct self-conceptions aligned with various societal roles. These identities are not fixed traits but are constructed through personal actions and the social feedback individuals receive in context-specific interactions. Each social role, such as student, teacher, or friend, carries a set of expectations and norms that influence how people think, feel, and behave within that...
204
Water: A Bronsted-Lowry Acid and Base
58.6K
The reaction between a Brønsted-Lowry acid and water is called acid ionization. For example, when hydrogen fluoride dissolves in water and ionizes, protons are transferred from hydrogen fluoride molecules to water molecules, yielding hydronium ions and fluoride ions:
58.6K
Water and Mineral Acquisition
35.7K
Specialized tissues in plant roots have evolved to capture water, minerals, and some ions from the soil. Roots exhibit a variety of branching patterns that facilitate this process. The outermost root cells have specialized structures called root hairs that increase the root surface, thus increasing soil contact. Water can passively cross into roots, as the concentration of water in the soil is higher than that of the root tissue. Minerals, in contrast, are actively transported into root cells.
35.7K
Organic Compounds
57.3K
All living things are formed mostly of carbon compounds called organic compounds. The category of organic compounds includes both natural and synthetic compounds that contain carbon. Although a single, precise definition has yet to be identified by the chemistry community, most agree that a defining trait of organic molecules is the presence of carbon as the principal element, bonded to hydrogen and other carbon atoms. However, some carbon-containing compounds such as carbonates, cyanides, and...
57.3K
Exponential Functions with Base e
247
Exponential functions with base e are essential for modeling continuous processes of growth and decay. The constant e, approximately 2.718, naturally arises in systems where change occurs proportionally to the current value. A positive exponent represents continuous growth, while a negative exponent represents continuous decay. These functions are especially useful for describing situations where change happens smoothly over time rather than in discrete steps.One clear example of exponential...
247


