Platinum group metals: Key solid phase adsorption technologies for separation from primary and secondary sources

L MacDonald, D Zhang, A Karamalidis - Resources, Conservation and …, 2024 - Elsevier
Platinum group metals (PGM) are a group of elements comprised of platinum (Pt), palladium
(Pd), ruthenium (Ru), iridium (Ir), osmium (Os), and rhodium (Rh) that are critical for use a …

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─ …

Molecular mechanisms of pyrophosphate-mediated selective adsorption of Ni (II) by polyamine-grafted chitosan–wood flour composite from alkaline plating …

C Ling, Z Wang, Y Song, L Fu, Y Zhang, W Wang… - Applied Surface …, 2023 - Elsevier
The efficient removal of complexed heavy metals (HMs) from alkaline electroless plating
wastewater is still challenging. A polyamine-grafted chitosan–wood flour-based composite …

Origins of clustering of metalate–extractant complexes in liquid–liquid extraction

S Nayak, RR Kumal, Z Liu, B Qiao… - … Applied Materials & …, 2021 - ACS Publications
Effective and energy-efficient separation of precious and rare metals is very important for a
variety of advanced technologies. Liquid–liquid extraction (LLE) is a relatively less energy …

Anions enhance rare earth adsorption at negatively charged surfaces

S Nayak, K Lovering, W Bu, A Uysal - The journal of physical …, 2020 - ACS Publications
Anions are expected to be repelled from negatively charged surfaces. At aqueous interfaces,
however, ion-specific effects can dominate over direct electrostatic interactions. Using …

Chemical Potential Driven Reorganization of Anions between Stern and Diffuse Layers at the Air/Water Interface

RR Kumal, S Nayak, W Bu, A Uysal - The Journal of Physical …, 2022 - ACS Publications
Ion adsorption and transfer at charged interfaces play key roles in various industrial and
environmental processes. Molecular scale details of ion–ion, ion–water, and ion–surface …

3D interconnected polymer/mesoporous silica nanoparticle hybrid materials with hierarchical macro/meso-structures for heavy metal adsorption

JS Park, Y Sunwoo, D Chakraborty… - New Journal of …, 2024 - pubs.rsc.org
Polyethyleneimine (PEI)/mesoporous silica hybrid materials with hierarchical
macro/mesostructures were synthesized using amine-coated mesoporous silica …

Heavy anionic complex creates a unique water structure at a soft charged interface

W Rock, B Qiao, T Zhou, AE Clark… - The Journal of Physical …, 2018 - ACS Publications
Ion hydration and interfacial water play crucial roles in numerous phenomena ranging from
biological to industrial systems. Although biologically relevant (and mostly smaller) ions …

Competitive adsorption analyses of a pure magadiite and a new silylated magadiite on methylene blue and phenol from related aqueous solution

M Ge, L Cao, M Du, G Hu, SMJ Alam - Materials Chemistry and Physics, 2018 - Elsevier
Organic contaminants have a destructive influence on the environment. Industrial emissions
are the main source of such contaminants and simultaneously contain numerous and …