索尔比改性石墨烯氧化物-铁氧化物纳米复合物,用于有效去除多西环素:机械和运动见解
Afia Murshida Kusum1,2, Md Humayun Kabir3, Md Safiqul Islam2
1Institute of National Analytical Research and Service (INARS), Bangladesh Council of Scientific and Industrial Research (BCSIR) Dhanmondi Dhaka-1205 Bangladesh sabinayasmin@bcsir.gov.bd.
RSC advances
|January 21, 2026
概括
一种新的sorbitol功能化石墨烯氧化物-铁氧化物 (GO/Fe-SBT) 纳米复合物迅速从水中去除多克西环素 (DOX). 这种环保吸附剂显示出高效率和可重复使用性,用于减轻抗生素污染.
科学领域:
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
- 纳米技术 纳米技术
背景情况:
- 水溶液中的抗生素污染对环境和健康构成重大风险.
- 传统的水处理方法往往难以有效和经济有效地去除制药污染物.
- 开发先进的吸附材料对于应对新出现的污染物至关重要.
研究的目的:
- 为了合成和表征一种新的sorbitol功能化石墨烯氧化物-铁氧化物 (GO/Fe-SBT) 纳米复合材料.
- 为了评估GO/Fe-SBT纳米复合物的效率,从水溶液中去除多克西环素 (DOX).
- 为了研究开发的吸附剂的吸附机制,动力学和可重复使用性.
主要方法:
- 在GO/Fe-SBT纳米复合材料的合成.
- 使用FTIR,XRD,SEM,TEM和EDX进行表征.
- 批量吸附实验以确定最佳条件和性能指标.
- 动力学和异热学研究,以了解吸附机制.
主要成果:
- 在GO/Fe-SBT纳米复合物成功合成和特征,显示增强的稳定性和活性点.
- 在低初始度下,在5分钟内达到96.82%的最大DOX去除效率.
- 吸附遵循伪二次动力学和弗洛伊德利希等温,表明化学吸附和多层吸附.
- 吸附剂表现出很好的可重复使用性,在七个循环后保持了超过94%的效率.
结论:
- GO/Fe-SBT纳米复合物是一种高效,快速,可重复使用的吸附剂,用于去除多西环素.
- 协同的吸附机制有助于高的去除效率.
- 这种材料具有强大的潜力,可用于减轻水中抗生素污染的可扩展应用.
相关概念视频
03:14Oxidation Numbers
42.2K
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.
42.2K
01:15Pyruvate Oxidation
168.4K
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+...
168.4K
03:11Oxidation-Reduction Reactions
75.2K
Oxidation–Reduction Reactions
75.2K
02:37Oxidation of Alcohols
15.7K
In this lesson, the oxidation of alcohols is discussed in depth. The various reagents used for oxidation of primary and secondary alcohols are detailed, and their mechanism of action is provided.
The process of oxidation in a chemical reaction is observed in any of the three forms:
The process of oxidation in a chemical reaction is observed in any of the three forms:
15.7K
01:17Oxidation of Phenols to Quinones
4.6K
In the presence of oxidizing agents, phenols are oxidized to quinones. Quinones can be easily reduced back to phenols using mild reducing agents. The electron-donating hydroxyl group enhances the reactivity of the aromatic ring, enabling oxidation of the ring even in the absence of an α hydrogen.
o-hydroxy phenols are oxidized to o-quinones and p-hydroxy phenols to p-quinones. Such redox reactions involve the transfer of two electrons and two protons. The reversible redox...
o-hydroxy phenols are oxidized to o-quinones and p-hydroxy phenols to p-quinones. Such redox reactions involve the transfer of two electrons and two protons. The reversible redox...
4.6K
03:08Hydroboration-Oxidation of Alkenes
11.2K
In addition to the oxymercuration–demercuration method, which converts the alkenes to alcohols with Markovnikov orientation, a complementary hydroboration-oxidation method yields the anti-Markovnikov product. The hydroboration reaction, discovered in 1959 by H.C. Brown, involves the addition of a B–H bond of borane to an alkene giving an organoborane intermediate. The oxidation of this intermediate with basic hydrogen peroxide forms an alcohol.
11.2K