Summaries by Inventor Jun, Young-Shin

Sustainable rare earth element extraction from coal ash
Jun, Young-Shin ; Zhu, Yaguang
T-019257

— Technology Description Researchers in Young-Shin Jun’s lab at Washington University have developed a more sustainable and efficient process for extracting rare earth elements from coal fly ash using supercritical fluids. Compared to the conventional roasting and acid leaching method, supercr…

Photothermal disinfection of N95 respirators
Jun, Young-Shin ; Singamaneni, Srikanth
T-019477

— Technology Description A team of researchers led by Young-Shin Jun have developed a polymer coating for N95 respirators that would permit fast, easy, and cheap N95 disinfection using only direct sunlight. The researchers coated the outermost fabric layer in polydopamine, which converts photon energ…

Low-cost, high-performance materials for solar-driven membrane distillation in water treatment and desalination
Jiang, Qisheng ; Jun, Young-Shin ; Singamaneni, Srikanth ; Wu, Xuanhao
T-019047

— Technology Description Engineers in Prof. Young-Shin Jun’s laboratory and Prof. Singamaneni’s laboratory have developed high performance, stable membrane materials that can be used for photothermal membrane distillation (PMD) to purify or desalinate water with minimal input of electric…

Low-cost, environmentally friendly synthesis of delta-MnO2 nanosheets for battery cathodes, catalysts and remediation
Jun, Young-Shin ; Jung, Haesung
T-018510

— Technology Description Engineers in Prof. Young-Shin Jun’s laboratory have developed a cost-effective, fast, green chemistry process to produce birnessite (δ-MnO2) nanosheets with naturally abundant resources. This method uses sunlight and nitrate to oxidize Mn2+ (aq) to Mn (IV) and ha…

Biodegradable beads for capturing phosphorus from water and releasing it as fertilizer
Jun, Young-Shin ; Kim, Doyoon
T-017987

— Engineers in Prof. Young-Shin Jun’s laboratory at Washington University in St. Louis have developed a scalable, effective, environmentally-friendly system for removing phosphorus from water using biodegradable alginate beads that can then be recycled as a slow release fertilizer in soil. This …