About this Abstract |
Meeting |
MS&T22: Materials Science & Technology
|
Symposium
|
Synthesis, Characterization, Modeling and Applications of Functional Porous Materials
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Presentation Title |
Enhanced Recovery of Platinum Group Elements Using Functionalized Silica Materials Coupled with Durable Carbon Storage via Mineralization |
Author(s) |
Greeshma Gadikota, Ruyi Zheng, Prince Ochonma |
On-Site Speaker (Planned) |
Greeshma Gadikota |
Abstract Scope |
Accelerating the transition to renewable energy resources and scalable energy storage technologies requires advancing sustainable approaches to recover platinum group elements from naturally occurring ores and alkaline residues. As an alternative to liquid-liquid extraction approaches that typically rely on the use of an organic phase to metals separation, functional materials that have a high affinity to bind platinum group elements selectively and are easily regenerable are crucial for energy- and atom-efficient separations. We will discuss approaches to functionalize silica surfaces using ligands that are highly selective for platinum group elements in multi-component ionic environments. Furthermore, the reactive crystallization of Group II elements (e.g., Ca, Mg) using regenerable solvents and CO2 to produce the respective solid carbonates is harnessed to separate other dissolved metals from these solutions. These approaches will pave the way for energy and atom-efficient pathways to harness platinum group elements from complex natural and engineered substrates. |