从水性介质中有效地去除酸盐,使用磁性双金属-铁改性硫甲基化宁生物炭
Rui Cui1, Jiliang Ma1, Gaojie Jiao1
1Liaoning Key Lab of Lignocellulose Chemistry and Biomaterials, Liaoning Collaborative Innovation Center for Lignocellulosic Biorefinery, College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China.
International journal of biological macromolecules
|July 15, 2023
概括
一种新的磁性生物炭吸收剂FeLaO3修饰硫甲基化素 (FLO@CSL),有效地从废水中去除酸盐. 这种材料具有很高的吸附能力和选择性,为净化水提供了有前途的解决方案.
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:
- 基于素碳的吸附剂显示出从废水中去除酸盐的前景.
- 现有的吸附剂通常表现出低效率和低选择性.
- 开发先进的吸附剂对于有效的废水整治至关重要.
研究的目的:
- 开发一种新的磁性生物炭吸收剂,用于增强酸盐去除.
- 研究新材料的吸附性能,机制和选择性.
- 为了解决当前基于素碳的吸附剂的局限性.
主要方法:
- 合成FeLaO3修饰的硫甲基化红素 (SL) 生物炭 (FLO@CSL).
- 吸附剂的特性,包括磁性和活性位点.
- 通过批量实验评估酸盐吸附能力,选择性和机制.
主要成果:
- FLO@CSL显示出137.14毫克Pg-1的高最大吸附能力.
- 吸附剂对酸盐去除具有显著的选择性.
- 酸盐吸附之后通过单层和带交换进行化学吸附.
- 这种材料具有出色的磁分离效率.
结论:
- FLO@CSL是一种高效的吸附剂,用于从废水中去除酸盐.
- 磁性和高吸附能力使其适用于实际应用.
- 这种新型材料为先进的废水处理提供了有希望的解决方案.
相关概念视频
00:56Extraction: Advanced Methods
493
Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...
493
04:01Factors Affecting Solubility
33.6K
Compared with pure water, the solubility of an ionic compound is less in aqueous solutions containing a common ion (one also produced by dissolution of the ionic compound). This is an example of a phenomenon known as the common ion effect, which is a consequence of the law of mass action that may be explained using Le Chȃtelier’s principle. Consider the dissolution of silver iodide:
33.6K