可持续的配纳米纤维化纤维素/本托尼特复合物用于增强酸盐去除:过程优化和机械洞察力
Archana Pandey1, Ajay S Kalamdhad2, Yogesh Chandra Sharma1
1Department of Chemistry, Indian Institute of Technology (BHU) Varanasi Varanasi 221005 India ysharma.apc@iitbhu.ac.in.
RSC advances
|January 23, 2026
概括
一种新型的配纤维素粘土复合物有效地从水中去除酸盐,显示出高吸附能力和可回收性. 这种可持续材料还提高了土壤的农业用途特性.
科学领域:
- 环境科学 环境科学
- 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:
- 在水生系统中过度的酸盐积累会造成生态损害和健康风险.
- 目前的酸盐去除方法往往效率低下或对环境造成负担.
研究的目的:
- 开发一种新型的添加剂纳米纤维化纤维素/矿 (Mg@NFC/BN) 复合物,用于高效的酸盐吸附.
- 评估复合材料的性能,稳定性和资源回收和农业应用的潜力.
主要方法:
- 在现场对纳米纤维化纤维素和酸的改造.
- 使用XRD,FTIR,FESEM,EDX和XPS等技术进行表征.
- 在各种条件下进行酸盐吸附/脱附实验,包括动力学,异热学和热力学研究.
主要成果:
- Mg@NFC/BN复合物实现了最大的酸盐吸附能力为19.2 mg g-1 ,其去除效率为88.6%.
- 吸附遵循伪二次动力学和兰木尔异热模型,表明自发和外热过程.
- 吸附剂表现出高稳定性,可回收性 (在7个循环后超过75%的容量),以及在广泛的pH范围内的有效性.
结论:
- Mg@NFC/BN复合物是一种高效和稳定的吸附剂,用于从废水中去除酸盐.
- 由于其土壤增强性质,该材料具有营养回收和可持续农业应用的潜力.
- 这项工作提出了综合性水资源整治和资源利用的环保战略.
相关概念视频
Sustainable Development
14.8K
As the human population continues to grow and use resources, we must be mindful of our planet’s natural limits. Sustainable development provides a pathway to maintain and improve human life now while also ensuring that future generations will have the resources that they need. The long-term success of sustainability efforts rests on understanding the interplay between human actions and ecological systems.
14.8K
Phosphate Buffer
4.9K
The phosphate buffer system is a critical biological mechanism for maintaining pH stability in the body. This system operates primarily through two components: sodium dihydrogen phosphate (NaH2PO4), which acts as a weak acid, and sodium hydrogen phosphate (Na2HPO4), which serves as a weak base.
Sodium dihydrogen phosphate does not fully dissociate in neutral or acidic solutions. When a strong base, such as sodium hydroxide (NaOH), is introduced into the solution, sodium dihydrogen phosphate...
Sodium dihydrogen phosphate does not fully dissociate in neutral or acidic solutions. When a strong base, such as sodium hydroxide (NaOH), is introduced into the solution, sodium dihydrogen phosphate...
4.9K
Cellulose and Pectic Polysaccharides
4.7K
Every plant cell has a cell wall that protects the cell, provides structural support, and gives the cell shape. Cellulose, the main structural component of the plant cell wall, makes up over 30% of plant matter. It is the most abundant organic compound on earth. Cellulose is an unbranched polysaccharide composed of linear chains of glucose molecules linked by β (1→4) glycosidic bonds.
As a cell matures, its cell wall specializes according to its type. For example, the...
As a cell matures, its cell wall specializes according to its type. For example, the...
4.7K
Classifying Matter by Composition
89.9K
Matter: Pure Substances and Mixtures
According to its composition, the matter can be classified into two broad categories — pure substances and mixtures.
A pure substance is a form of matter that has a constant composition throughout with uniform properties. For example, any sample of sucrose has the same composition and same physical properties, such as melting point, color, and sweetness, regardless of the source from which it is isolated.
A mixture is composed of two or...
According to its composition, the matter can be classified into two broad categories — pure substances and mixtures.
A pure substance is a form of matter that has a constant composition throughout with uniform properties. For example, any sample of sucrose has the same composition and same physical properties, such as melting point, color, and sweetness, regardless of the source from which it is isolated.
A mixture is composed of two or...
89.9K
Design Example: Sustainability in Concrete Building
394
As the construction industry moves towards more eco-friendly practices, concrete's adaptability and its ability to incorporate sustainable features make it a key material in the drive towards greener building solutions.
There are multiple approaches to achieve sustainability in a commercial concrete building. For instance, construct a concrete parking area under the building, utilizing pervious concrete paver blocks in open areas to facilitate rainwater collection through an underground...
There are multiple approaches to achieve sustainability in a commercial concrete building. For instance, construct a concrete parking area under the building, utilizing pervious concrete paver blocks in open areas to facilitate rainwater collection through an underground...
394
Mechanistic Models: Overview of Compartment Models
371
Mechanistic models, a category encompassing both physiological and compartmental modeling, differ from empirical models' approaches to incorporating known factors about the systems being modeled. Empirical models describe data with minimal assumptions, while mechanistic models aim to provide a robust description of available data by specifying assumptions and integrating known factors about the system. Compartmental analysis is a key example of a mechanistic model in pharmacokinetics and...
371


