Researchers propose chromatography-like separation mechanism with UV-rGO membranes
Researchers from Pacific Northwest National Laboratory have found that reducing graphene oxide (GO) membranes with ultraviolet (UV) light alters the oxygen functional groups on the GO surface. This modification results in a different, chromatography-like separation mechanism that is selective for charge rather than size.
Image credit: Chemical Engineering Journal
Developing efficient, selective, and scalable separations for critical materials, including lithium and magnesium, is essential to meeting the increasing demands for clean energy technologies and alleviating challenges with domestic supply chains. GO membranes have shown promise for separating ions from mixed solutions based on size.
Source: http://www.graphene-info.com/researchers-propose-chromatography-separation-mechanism-uv-rgo-membranes
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