表面工程氨基石墨烯氧化物气凝与环氧化功能化,用于石油精炼中的脱硫和脱
Zunbin Duan1, Huiming Zhang2, Qiang Tong3
1National Engineering Research Center for Colloidal Materials and School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China.
Gels (Basel, Switzerland)
|January 27, 2026
概括
一种新型的氧化石墨烯气凝与环氧化功能化,有效地从燃料中去除硫和污染物. 这种吸附剂具有较高的选择性和耐用性,可用于更清洁的燃烧和燃料提炼.
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:
- 从燃料中选择性去除异原子污染物 (硫,) 对于清洁燃烧和炼油厂升级至关重要.
- 芳香污染物的化学稳定性和结构相似性对现有的分离方法构成重大挑战.
研究的目的:
- 开发一种表面工程石墨烯氧化物气凝,其功能与环氧化 (β-CD-CONH-GO) 相结合,以有效和选择性地去除燃料污染物.
- 研究开发材料对各种芳香杂质的吸附机制和性能.
主要方法:
- 在石墨烯氧化物气凝上对环氧德的共价接种,以创建主机-客户识别站点.
- 光谱和显微表征 (例如,FTIR,SEM,TEM) 来确认功能和形态.
- 吸附实验用于评估不同燃料污染物的去除效率,选择性和动力学.
主要成果:
- 将氧化石墨烯气凝与环氧化成功功能化,保持气凝结构并创建可访问的接口.
- 单环,双环和三环芳香杂质的有效吸附,性能顺序为:醇 > 氨酸 > 氨酸.
- 伪二次吸附动力学表明化学吸附主要由宿主-客体相互作用和键.
- 在混合系统中对污染物的高选择性,在五个再生周期后保持>95%的效率.
结论:
- β-CD-CONH-GO证明了设计用于深度燃料提炼的先进吸附剂的可行途径.
- 基于环氧烯的石墨烯混合气凝显示出在挑性燃料杂质的选择性分离方面显著的前景.
- 分子包容,键和多孔封闭的协同效应有助于材料的高性能.
更多相关视频
07:51Development and Functionalization of Electrolyte-Gated Graphene Field-Effect Transistor for Biomarker Detection
Published on: February 1, 2022
3.8K
08:57Scalable Syntheses of Graphene Oxide and Reduced Graphene Oxide using Cascade Design Oxidation and Highly Basic Reduction Reactions
Published on: July 3, 2025
2.0K
相关概念视频
03:42Amino acids
105.1K
Amino acids are the monomers that comprise proteins. Each amino acid has the same fundamental structure, which consists of a central carbon atom, or the alpha (α) carbon, bonded to an amino group (NH2), a carboxyl group (COOH), and to a hydrogen atom. Every amino acid also has another atom or group of atoms bonded to the central atom known as the R group. There are 20 common amino acids present in proteins, each with a different R group. Variation in the amino acid sequence is responsible for...
105.1K
03:14Oxidation Numbers
42.5K
In redox reactions, the transfer of electrons occurs between reacting species. Electron transfer is described by a hypothetical number called the oxidation number (or oxidation state). It represents the effective charge of an atom or element, which is assigned using a set of rules.
42.5K
03:11Oxidation-Reduction Reactions
75.5K
Oxidation–Reduction Reactions
75.5K
01:15Pyruvate Oxidation
168.7K
After glycolysis, the charged pyruvate molecules enter the mitochondria via active transport and undergo three enzymatic reactions. These reactions ensure that pyruvate can enter the next metabolic pathway so that energy stored in the pyruvate molecules can be harnessed by the cells.
First, the enzyme pyruvate dehydrogenase removes the carboxyl group from pyruvate and releases it as carbon dioxide. The stripped molecule is then oxidized and releases electrons, which are then picked up by NAD+...
First, the enzyme pyruvate dehydrogenase removes the carboxyl group from pyruvate and releases it as carbon dioxide. The stripped molecule is then oxidized and releases electrons, which are then picked up by NAD+...
168.7K
01:18Amino Acid Catabolism
1.1K
Microorganisms rely on proteins as an essential carbon and energy source, particularly in environments with limited polysaccharides or lipids. However, proteins are too large to cross the plasma membrane unaided, necessitating enzymatic degradation. Microbes secrete extracellular proteases and peptidases that hydrolyze proteins into peptides, which can then be transported across the membrane. Once inside the cell, intracellular proteases degrade these peptides into free amino acids, which...
1.1K
02:45Functional Groups
88.2K
Functional groups are a group of atoms with characteristic properties, which when linked to the carbon skeleton of a molecule, alter the properties of that molecule. For example, the presence of certain functional groups on a molecule will make them hydrophilic, whereas others will make them hydrophobic. These functional groups are an indispensable part of organic chemistry and important components of biological molecules, such as carbohydrates, proteins, lipids, and nucleic acids. Each...
88.2K