Aqueous interfaces in chemical separations

A Uysal - Langmuir, 2023 - ACS Publications
Chemical separations play a vital role in refinery and reprocessing of critical materials, such
as platinum group metals, rare earths, and actinides. The choice of separation system─ …

Effective and selective extraction of Au (III) and Pd (II) from practical e-waste by tridentate thioether extractants

X Huang, M Yi, K Tang - Chemical Engineering Journal, 2024 - Elsevier
To address resources shortage and environmental degradation, noble metal recovery from e-
waste is in desperate need. Herein, to achieve selective extraction of gold (Au) and …

In situ growth of porous organic framework on iron wire for microextraction of polycyclic aromatic hydrocarbons

L Xu, W Hu, F Wu, J Zhang - Talanta, 2023 - Elsevier
In this work, a novel spherical metal organic framework (MOF) was first in situ grown on the
surface of iron wire (IW), in which IW served as the substrate and metal source for MOF (type …

Magnetic graphene oxide− based covalent organic frameworks as novel adsorbent for extraction and separation of triazine herbicides from fruit and vegetable …

Y Li, X Xu, H Guo, Y Bian, J Li, F Zhang - Analytica Chimica Acta, 2022 - Elsevier
A novel magnetic graphene oxide− based covalent organic frameworks, was prepared
initially by grafting two monomers, tris (4− aminophenyl) amine and 2, 4, 6 …

Covalent organic framework in situ grown on the metal–organic framework as fiber coating for solid-phase microextraction of polycyclic aromatic hydrocarbons in tea

L Xu, W Hu, X Luo, J Zhang - Microchimica Acta, 2023 - Springer
Abstract A novel MIL-88-NH2@ COF composite was produced by in situ growth of covalent
organic framework (COF) on the metal–organic framework (MOF) surface. To obtain a …

Metastable precipitation and ion–extractant transport in liquid–liquid separations of trivalent elements

P Sun, XM Lin, MK Bera, B Lin, D Ying, T Chang… - Proceedings of the …, 2024 - pnas.org
The extractant-assisted transport of metal ions from aqueous to organic environments by
liquid–liquid extraction has been widely used to separate and recover critical elements on …

Antagonistic role of aqueous complexation in the solvent extraction and separation of rare earth ions

P Sun, EA Binter, Z Liang, MA Brown… - ACS Central …, 2021 - ACS Publications
Solvent extraction is used widely for chemical separations and environmental remediation.
Although the kinetics and efficiency of this process rely upon the formation of ion–extractant …

Tracking molecular transport across oil/aqueous interfaces: Insight into “antagonistic” binding in solvent extraction

UI Premadasa, V Bocharova, L Lin… - The Journal of …, 2023 - ACS Publications
Liquid/liquid (L/L) interfaces play a key, yet poorly understood, role in a range of complex
chemical phenomena where time-evolving interfacial structures and transient …

Boronic acid grafted metal-organic framework for selective enrichment of cis-diol-containing compounds

S Feng, A Zhang, F Wu, X Luo, J Zhang - Journal of Chromatography A, 2022 - Elsevier
This study constructed boronic acid grafted Zr-MOF (BA-Zr-MOF) by a simple pre-installation
strategy through mixed organic ligands. Typically, BA-Zr-MOF was prepared by one-step …

Elucidating trivalent ion adsorption at floating carboxylic acid monolayers: Charge reversal or water reorganization?

S Nayak, RR Kumal, SE Lee… - The Journal of Physical …, 2023 - ACS Publications
We study the adsorption of trivalent neodymium on floating arachidic acid films at the air–
water interface by two complementary surface specific probes, sum frequency generation …