相关实验视频

Updated: Jul 15, 2025

Optimized Procedure for Determining the Adsorption of Phosphonates onto Granular Ferric Hydroxide using a Miniaturized Phosphorus Determination Method

Optimized Procedure for Determining the Adsorption of Phosphonates onto Granular Ferric Hydroxide using a Miniaturized Phosphorus Determination Method

Published on: May 18, 2018

用于基本染料去除的含吸附剂的合成和表征

Monika Wawrzkiewicz¹, Sławomir Frynas², Beata Podkościelna³

¹Department of Inorganic Chemistry, Faculty of Chemistry, Institute of Chemical Sciences, Maria Curie-Sklodowska University in Lublin, M. Curie-Sklodowska Sq. 3, 20-031 Lublin, Poland.

Molecules (Basel, Switzerland)

|September 28, 2023

概括

一种基于的新型吸附剂有效地去除了基本黄色2和基本蓝3等阴离子染料,吸附动力学遵循伪二阶模型. 再生效率有限,不超过60%.

科学领域:

材料科学材料科学材料科学
环境化学环境化学
聚合物化学聚合物化学

背景情况:

污染废水的化染料带来环境和健康风险.
开发高效和成本效益的吸附剂材料对于去除染料至关重要.
含的聚合物提供了增强吸附性能的潜力.

研究的目的:

为了合成和表征一种新的含吸附剂.
为了评估吸附剂在从水溶液中去除阴离子染料的效率.
研究吸附机制,动力学和再生能力.

主要方法:

乙烯基醇二甲基烯酸盐 (EGDMA),三甲基维尼尔西兰 (TMVS) 和二维尼尔氧化物 (DPVO) 的共聚合,以制造吸附剂.
批量吸附实验用于去除CI. 基本黄色2 (BY2),C.I. 黄色2 (BY2),C.I. 黄色2 (BY2),C.I. 黄色2 (BY2),C.I. 黄色2 (BY2),C.I. 黄色2 (BY2),C.I. 黄色2 (BY2),C.I. 黄色2 (BY2),C.I. 基本蓝色3 (BB3) 和C.I.蓝色基本红色46 (BR46) 是一个基本的红色.
吸附等温 (Langmuir, Freundlich, Temkin, D-R) 和动力 (伪第一阶,伪第二阶,粒子内部扩散) 建模.

主要成果:

光谱分析证实了基基在吸附剂结构中的成功结合.
弗洛恩德利希模型最好地描述了BB3和BY2吸附,而兰慕尔模型适合BR46吸附.
吸附动力学遵循伪二阶模型,表明化学吸附是限制速度的步骤.
吸附剂的性能受到Na2SO4和阴离子表面活性剂的负面影响.
使用常见的酸性和盐溶液与甲醇的再生效率低于60%.

结论:

合成的DPVO-EGDMA-TMVS吸附剂显示了离子染料去除的潜力.
吸附行为是特定于染料的,不同的模型提供最适合的.
需要进一步优化,以提高实际应用的再生效率.

关键词:

基本蓝色 3 基本蓝色 3 基本红色 46 基本红色 46 基本黄色 2 基本黄色 2 基本黄色基本的染料吸附基本的染料吸附.含有的聚合物聚合物.聚合物吸附剂是一种聚合物吸附剂.

更多相关视频

Synthesis of High Purity Nonsymmetric Dialkylphosphinic Acid Extractants

Synthesis of High Purity Nonsymmetric Dialkylphosphinic Acid Extractants

Published on: October 19, 2017

Deposition of Porous Sorbents on Fabric Supports

Deposition of Porous Sorbents on Fabric Supports

Published on: June 12, 2018

相关概念视频

Factors Affecting Solubility

Factors Affecting Solubility

Compared with pure water, the solubility of an ionic compound is less in aqueous solutions containing a common ion (one also produced by dissolution of the ionic compound). This is an example of a phenomenon known as the common ion effect, which is a consequence of the law of mass action that may be explained using Le Chȃtelier’s principle. Consider the dissolution of silver iodide:

The Phosphorus Cycle

The Phosphorus Cycle

Unlike carbon, water, and nitrogen, phosphorus is not present in the atmosphere as a gas. Instead, most phosphorus in the ecosystem exists as compounds, such as phosphate ions (PO43-), found in soil, water, sediment and rocks. Phosphorus is often a limiting nutrient (i.e., in short supply). Consequently, phosphorus is added to most agricultural fertilizers, which can cause environmental problems related to runoff in aquatic ecosystems.

Ion Exchange

Ion Exchange

Ion exchange chromatography separates charged molecules from a solution by reversibly exchanging them with mobile, or 'active', ions associated with the oppositely charged stationary phase. This method can be used to separate ions, soften and deionize water, and purify solutions. The polymers comprising the ion-exchange column are high-molecular-weight and chemically stable polymers, crosslinked to be porous and essentially insoluble. They are also functionalized with either acidic or...