由蒸汽激活的竹木木炭增强的甘油三吸附,基于分子动力学研究
Hegang Zhu1, Sheng Zhang2, Honghui Zheng1
1Central South University of Forestry and Technology, Changsha, 410004, China.
Scientific reports
|March 15, 2024
概括
与普通竹木炭相比,活性竹木炭显示出较高的甘油三吸附率 (27.0%). 这种增强的性能归因于其增加的表面积和优化的毛孔结构,使其有效地去除甘油三.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 环境科学 环境科学
背景情况:
- 三甘油在各种工业废水和生物流体中普遍存在.
- 有效地去除甘油三对于环境修复和生物医学应用至关重要.
- 竹木炭是一种可持续且具有成本效益的吸附材料.
研究的目的:
- 为了研究活性竹木木炭的甘油三吸附能力.
- 用分子动力学模拟来探索甘油三的吸附机制.
- 为了比较活性竹炭与普通竹炭的性能.
主要方法:
- 竹木木炭在750°C时用蒸汽激活.
- 正角设计被用来研究甘油三吸附.
- 用分子动力学模拟来阐明吸附机制.
- 具体的表面积和孔径的特征.
主要成果:
- 活性竹木炭实现了27.0%的甘油三吸附能力.
- 活性竹炭的特定表面积为560.0 m2/g,平均孔径为1.6 nm.
- 分子动力学模拟显示,活性竹炭的相互作用能量 (-145.12 kcal/mol) 与普通竹炭 (-132.73 kcal/mol) 相比较高.
- 活性竹炭每克吸收的甘油三分子显著多 (1.77 × 1021 分子/g) 比普通竹炭 (1.56 × 1019 分子/g).
结论:
- 活性竹木炭表现出显著增强的甘油三吸附能力.
- 性能提升与其增加的表面积和优化的孔隙结构有关.
- 分子动力学模拟证实了活性竹炭和甘油三之间有利的相互作用.
更多相关视频
相关概念视频
01:19Drug Absorption Mechanism: Carrier-Mediated Membrane Transport
Certain large, lipid-insoluble drug molecules that resemble amino acids, peptides, or glucose, require specialized carrier proteins to facilitate their diffusion across cell membranes. This transport can occur through either facilitated diffusion, which does not require energy input, or active transport, which does require energy input.
Facilitated diffusion is a passive process that utilizes human Solute Carrier (SLC) transporters. These transporters bind to the drug, undergo structural...
Facilitated diffusion is a passive process that utilizes human Solute Carrier (SLC) transporters. These transporters bind to the drug, undergo structural...
01:28Adsorption of Gases on Solids
Adsorption is a process where molecules, known as the adsorbates, accumulate on a surface, which is referred to as the adsorbent or substrate. Occurring at the solid-gas interface, this phenomenon is crucial in various scientific and industrial contexts. The reverse of adsorption is desorption.Two types of adsorptions exist: physical (physisorption) and chemical (chemisorption). Physisorption involves gas molecules held to the solid's surface by relatively weak intermolecular van der Waals...