相关实验视频

Updated: Aug 8, 2026

Detection and Recovery of Palladium, Gold and Cobalt Metals from the Urban Mine Using Novel Sensors/Adsorbents Designated with Nanoscale Wagon-wheel-shaped Pores

Detection and Recovery of Palladium, Gold and Cobalt Metals from the Urban Mine Using Novel Sensors/Adsorbents Designated with Nanoscale Wagon-wheel-shaped Pores

Published on: December 6, 2015

高分散的无形纳米功能化碳纳米纤维气凝用于高效吸收和固定Hg(II) 离子

Dongmin Zhao¹, Zhuoyan Li¹, Kaini Zhu¹

¹State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, People's Republic of China.

Journal of hazardous materials

|December 12, 2023

概括

新的Se/CNF气凝有效捕获有毒的 (Hg) 离子. 这些材料最大限度地增加了.

科学领域:

环境科学环境科学
材料科学材料科学材料科学
化学化学化学

背景情况:

含有 (Se) 的材料在去除 (Hg (II)) 离子方面表现有前途.
元素Se提供了高的Se比率,但在现场暴露和利用效率方面面临挑战.

研究的目的:

开发Se/CNF气凝,以高效地吸收和固定Hg (II) 离子.
为了提高元素Se在整治中的利用效率.

主要方法:

合理设计Se/CNF气凝结构,分散性和大小.
在3D多孔纤维素纳米纤维 (CNF) 气凝中制备分散良好的无形纳米-Se.
评估Hg(II) 离子结合能力,容量,选择性和Se利用效率.

主要成果:

对于Hg,Se/CNF气凝具有强大的结合 (K_d = 3.8 × 10⁵ mL·g^-1) 和高容量 (943.4 mg·g^-1) .
在99.5%的Se利用效率下,实现了对Hg(II) (α_M^Hg > 100) 的卓越选择性.
该材料的结构有利于离子运输和操作,而稳定的HgSe则尽量减少对环境的影响.

结论:

Se/CNF气凝为整治提供了高效和稳定的解决方案.
优化的材料设计最大限度地提高了Se的暴露和利用,从而获得更好的Hg (II) 吸附.
开发的气凝是一种有前途的吸附剂,具有最小的二次环境风险.

关键词:

碳纳米纤维气凝是一种碳纳米纤维气凝.基本的是元素的.在 HgSe 中.离子是一种离子.水的净化水的净化方法

更多相关视频

Removal of Arsenic Using a Cationic Polymer Gel Impregnated with Iron Hydroxide

Removal of Arsenic Using a Cationic Polymer Gel Impregnated with Iron Hydroxide

Published on: June 28, 2019

A Dual-Functional Electroactive Filter Towards Simultaneously SbIII Oxidation and Sequestration

A Dual-Functional Electroactive Filter Towards Simultaneously SbIII Oxidation and Sequestration

Published on: December 5, 2019

相关概念视频

¹³C NMR: ¹H–¹³C Decoupling

¹³C NMR: ¹H–¹³C Decoupling

The probability of having two carbon-13 atoms next to each other is negligible because of the low natural abundance of carbon-13. Consequently, peak splitting due to carbon-carbon spin-spin coupling is not observed in spectra. However, protons up to three sigma bonds away split the carbon signal according to the n+1 rule, resulting in complicated spectra.
A broadband decoupling technique is used to simplify these complex, sometimes overlapping, signals. Broadband decoupling relies on a...

Extraction: Advanced Methods

Extraction: Advanced Methods

Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is formed in...