在定义的硬水中合成, (生物) 降解和利用粉衍生生物聚合物
Adrián Matencio1, David Rupérez-Cebolla2, Edoardo Fioravanti1
1Department of Chemistry, Nanomaterials for Industry and Sustainability Centre (NIS Centre), Università degli Studi di Torino, Via P. Giuria 7, 10125 Turin, Italy.
Carbohydrate polymers
|December 8, 2024
概括
气候变化增加了水的硬度. 这项研究表明,德克斯特林衍生的聚合物可以有效地去除和离子,为水处理提供了新的解决方案.
科学领域:
- 环境化学环境化学
- 聚合物科学 聚合物科学
- 水处理技术水处理技术
背景情况:
- 气候变化正在改变降雨模式,导致降雨量减少和水硬度增加.
- 硬水带来了挑战,需要有效的离子去除方法 (和).
- 德克斯特林衍生的聚合物正在探索其在净化水中的潜力.
研究的目的:
- 评估德克斯特林衍生聚合物的适用性和稳定性,以进行离子去除.
- 评估聚合物结构 (单体和交叉连接器类型) 对性能的影响.
- 研究吸附动力学和软化水的机制.
主要方法:
- 使用热分析和FTIR,合成和表征德克斯特林衍生聚合物.
- 生物降解性测试,以评估聚合物的耐用性.
- 批量吸附实验以确定不同度的离子去除效率.
- 动力和同热模型,以了解吸附机制.
主要成果:
- 聚合物表现出热稳定性和正确的形成.
- 克莱普托斯®LINECAPS (LC) 和GLUCIDEX2® (Glu2) 德克斯特林衍生物的耐用性得到提高.
- 线性单体在离子吸附中表现更好.
- 特定的交叉连接剂显示有选择性:的PMDA衍生物,的酸衍生物.
- 吸附遵循准二次动力学和弗洛伊德利希异热模型.
结论:
- 德克斯特林衍生聚合物在去除和离子方面稳定且有效.
- 聚合物结构显著影响了离子去除效率和选择性.
- 这些聚合物显示出作为减轻水硬度的新过器的前景.
- 研究结果表明,在有机污染物清除中使用的聚合物可能用于软化水的应用.
相关概念视频
Hydrolysis
104.3K
Overview
Hydrolysis is a chemical reaction in which the addition of water breaks down a polymer into its simpler monomer units. For example, peptides break into amino acids, carbohydrates into simple sugars, and DNA into nucleotides. Enzymes often facilitate these processes.
Hydrolysis Reverses Dehydration Synthesis
Complex carbohydrates can be broken down by breaking the bonds between individual sugar units. The reaction breaks a glycosidic bond as water is added to the compound. The...
Hydrolysis is a chemical reaction in which the addition of water breaks down a polymer into its simpler monomer units. For example, peptides break into amino acids, carbohydrates into simple sugars, and DNA into nucleotides. Enzymes often facilitate these processes.
Hydrolysis Reverses Dehydration Synthesis
Complex carbohydrates can be broken down by breaking the bonds between individual sugar units. The reaction breaks a glycosidic bond as water is added to the compound. The...
104.3K
Biosynthesis of Polysaccharides
Polysaccharides such as glycogen and starch are synthesized from nucleoside diphosphate sugars, primarily uridine diphosphate glucose (UDPG) and adenosine diphosphate glucose (ADPG). These activated glucose donors act as key intermediates in carbohydrate metabolism and biosynthesis. UDPG primarily involves glycogen synthesis in animals and many bacteria, while ADPG plays a fundamental role in starch synthesis in plants and certain bacteria.UDPG is formed when glucose-1-phosphate reacts with...
Types of Step-Growth Polymers: Polyesters
2.2K
The introduction of polyesters has brought major development to the textile industry. The wrinkle-free behavior of polyester blends has eliminated the need for starching and ironing clothes.
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the...
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the...
2.2K
Introduction to Carbohydrates
12.2K
Carbohydrates, proteins, and fats are the primary macronutrients in the human diet. However, carbohydrates are the most favored source of energy in the body. They can be found in a wide variety of foods, including whole grains, fruit, and vegetables, in various forms, such as sugars, starch, and dietary fiber. Based on their structure, carbohydrates are classified into three main classes— monosaccharides, disaccharides, and polysaccharides. The body's cells can only utilize simple...
12.2K
Biofilms
Biofilms are complex communities of microorganisms encased in a self-produced extracellular polysaccharide matrix attached to surfaces. These microbial consortia can include single or multiple species, providing enhanced survival benefits by forming organized, multilayered structures.The formation of biofilms occurs through four key stages: attachment, colonization, development, and dispersal.During attachment, free-swimming planktonic cells adhere to a surface, often facilitated by...


