从水溶液中去除二甲基二硫酸盐,使用四度改性纸纤维
Ming Zou1, Hongfei Zhang1, Haixin Zhang2
1Graduate School of Science and Technology, Niigata University, 8050 Ikarashi 2-Nocho, Nishi-ku, Niigata 950-2181, Japan.
ACS omega
|July 7, 2025
概括
改性废纸纤维有效地从水中去除二二硫酸盐 (SDBS). 这种新型吸附剂的容量增加了8倍,其去除率为97.6%,为表面活性剂污染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
- 环境化学环境化学
- 水处理 处理水的方法
背景情况:
- 像二二硫酸盐 (SDBS) 这样的阳离子表面活性剂是常见的水污染物.
- 消除SDBS的有效和可持续方法对于环境保护至关重要.
研究的目的:
- 开发一种有效的吸附剂,用于从水溶液中去除SDBS.
- 利用废纸作为吸附材料的可持续来源.
主要方法:
- 纸纤维在性条件下通过威廉森反应与四级基组功能化.
- 修改纤维的表征证实了成功的移植和36.6%的修改率.
- 进行了吸附实验,以评估SDBS去除效率和能力.
主要成果:
- 与未经修改的纤维相比,修改的纸纤维显示SDBS吸附能力增加了8倍.
- 在最佳条件下 (pH 7,吸附剂0.3g,时间6h) 达到97.6%的高SDBS去除率.
- 吸附后是伪二次动力学和兰迈尔异温,最大容量为90.9mg/g.
结论:
- 从废纸中提取的酸性纤维素是SDBS的高效吸附剂.
- 吸附过程的自发和外热性质表明了有利的相互作用.
- 这种方法是一个有希望的,环保的方法来处理被表面活性剂污染的废水.
相关概念视频
Capillary Electrophoresis: Applications
540
Capillary electrophoretic separations offer various modes, each with unique applications. These modes include capillary zone electrophoresis, capillary gel electrophoresis, capillary array electrophoresis, capillary isoelectric focusing, capillary isotachophoresis, micellar electrokinetic chromatography, and capillary electrochromatography.
Capillary zone electrophoresis (CZE) separates ionic components based on their electrophoretic mobility. It has been used to separate proteins, amino acids,...
Capillary zone electrophoresis (CZE) separates ionic components based on their electrophoretic mobility. It has been used to separate proteins, amino acids,...
540
Ion Exchange
669
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...
669
Detergent Purification of Membrane Proteins
5.4K
Detergents are used to purify the integral proteins of the membrane. The hydrophobic portion of the detergent can replace membrane phospholipids while solubilizing the membrane proteins. When detergent monomers reach a specific concentration in a solution called critical micelle concentration (CMC), they form micelles. Above CMC, the concentration of the detergent monomers remains in equilibrium with the micelle. The number of detergent monomers present in the CMC varies for each detergent, and...
5.4K
Electrophilic Aromatic Substitution: Sulfonation of Benzene
6.5K
Sulfonation of benzene is a reaction wherein benzene is treated with fuming sulfuric acid at room temperature to produce benzenesulfonic acid. Fuming sulfuric acid is a mixture of sulfur trioxide and concentrated sulfuric acid.
6.5K


