基于咖啡的活性碳的微波辅助制备:作为净水吸附剂的特征,特性和潜在应用
Przemysław Pączkowski1, Viktoriia Kyshkarova2, Viktor Nikolenko3
1Department of Polymer Chemistry, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Skłodowska University, Gliniana 33, 20-614 Lublin, Poland.
Molecules (Basel, Switzerland)
|October 29, 2025
概括
咖啡渣被转化为活性炭使用微波辅助方法和等离子处理. 这些新型碳有效地从水中去除抗生素,显示出高吸附能力和可用于环境应用的可重复使用性.
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 诸如西普罗夫洛克萨之类的药物污染了水.
- 传统的水处理方法与抗生素的去除斗争.
- 活性炭为污染物吸附提供了一个有希望的解决方案.
研究的目的:
- 从咖啡粉中合成活性炭.
- 用冷等离子处理来增强碳的特性.
- 为了评估碳的效率,从水溶液中去除西普洛素.
主要方法:
- 咖啡渣被碳化使用酸和微波辅助.
- 合成的碳经过冷等离子体表面处理.
- 吸附,XPS和SEM分析了结构和化学特性.
- 在不同的pH值,动力学和度下研究了西普洛素吸附.
主要成果:
- 血处理显著改善了表面的功能性和多孔性.
- 吸附动力学遵循一个伪二阶模型.
- 兰穆尔和弗洛因德利希等热量描述了平衡数据,表明混合吸附机制.
- 经过等离子体处理的碳体表现出比未被激活的样本 (20.2-92.4 mg g-1) 更高的西普罗夫洛克萨吸附能力 (42.6-120.6 mg g-1).
结论:
- 微波辅助合成和等离子处理从咖啡粉中产生高效的活性碳.
- 开发的吸附剂表现出卓越的性能和可重复使用性,用于清除西普洛素.
- 这种可持续的方法为制药废水处理提供了可行的解决方案.
相关概念视频
Micelles
Micelle formation is an intricate process that hinges on the properties of amphiphilic or amphipathic molecules and the conditions of the system in which they are found. Amphiphilic molecules, which have both hydrophilic (water-attracting) and hydrophobic (water-repelling) parts, play a critical role in this process.In aqueous environments, these molecules arrange themselves such that their hydrophilic heads are turned towards the water phase, while their hydrophobic tails are oriented away...
Environmental Applications of Microorganisms
Microorganisms play a pivotal role in maintaining ecosystem balance by recycling essential elements such as carbon, nitrogen, and phosphorus, as well as supporting processes like bioremediation, wastewater treatment, and biofuel production.Microbes in Elemental CyclesIn the carbon cycle, microorganisms decompose organic matter, releasing carbon dioxide via aerobic respiration. This carbon dioxide is subsequently used by photosynthetic organisms to synthesize organic compounds, closing the...
Physical Methods for Controlling Microbial Growth: Radiation and Filtration
Radiation and filtration are essential tools for microbial control, targeting microorganisms through distinct mechanisms. Radiation eliminates microbes by damaging their DNA, either killing them or inhibiting their growth. Based on wavelength, radiation is classified into two types: nonionizing and ionizing radiation.Non-ionizing radiation, such as UV radiation (200–400 nm), is absorbed by DNA, causing defects that effectively disinfect surfaces, air, and water, including safety cabinets.
Microbial Wastewater Treatment
Microbial communities in aquatic ecosystems play a key role in the natural breakdown of contaminants introduced through domestic and industrial effluents. Acting as biological catalysts, these microbes change and mineralize a wide range of organic and inorganic pollutants under different redox conditions.In oxygen-rich surface waters, aerobic heterotrophs lead organic matter breakdown, using oxygen as the terminal electron acceptor to efficiently oxidize substrates to carbon dioxide and water.
Microbial Fuel Cells
Microbial fuel cells (MFCs) are bioelectrochemical devices that generate electricity by exploiting the metabolic processes of electrogenic bacteria. These systems provide a renewable energy source and serve as an innovative method for treating organic waste, such as wastewater.A typical MFC consists of two chambers: an anoxic (oxygen-free) compartment that houses the bacteria and an oxic (oxygen-rich) compartment that contains oxygen as the terminal electron acceptor. Many MFCs use proton...
Microbes in Beverage Production
Alcoholic beverages such as wine, beer, and spirits are the products of microbial fermentation processes that transform simple sugars into ethanol and a wide array of complex flavor compounds. These transformations rely on the metabolic activities of specific yeasts and bacteria, which are selected and controlled to yield the desired beverage characteristics.Wine Fermentation and MaturationWine production begins with the crushing of grapes to release juice and pulp, forming a must that is...


