Browsing by Author "Kim, Jaehong"

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    Fullerene compositions and methods for photochemical purification
    (2014-03-25) Alvarez, Pedro J.J.; Lee, Jaesang; Wilson, Lon J.; Mackeyev, Yuri; Kim, Jaehong; Rice University; Georgia Tech Research Corporation; United States Patent and Trademark Office
    In various embodiments, the present disclosure describes fullerene derivatives that are capable of photocatalytically generating reactive oxygen species in the presence of ultraviolet and/or visible light. In some embodiments, the fullerene derivatives are aminofullerenes containing a plurality of amine-terminated moieties covalently bonded to the fullerene cage. The fullerene derivatives may optionally be covalently bonded to a substrate surface for use in photocatalytic disinfection systems for removing various contaminants including, for example, bacteria, viruses, protozoa and chemical pollutants. Methods using the present fullerene and aminofullerene derivatives in various purification processes are also described herein.
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    Utilizing the broad electromagnetic spectrum and unique nanoscale properties for chemical-free water treatment
    (Elsevier, 2021) Westerhoff, Paul; Alvarez, Pedro J.J.; Kim, Jaehong; Li, Qilin; Alabastri, Alessandro; Halas, Naomi J.; Villagran, Dino; Zimmerman, Julie; Wong, Michael S.; Chemical and Biomolecular Engineering; Civil and Environmental Engineering; Electrical and Computer Engineering; Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment
    Clean water is critical for drinking, industrial processes, and aquatic organisms. Existing water treatment and infrastructure are chemically intensive and based on nearly century-old technologies that fail to meet modern large and decentralized communities. The next-generation of water processes can transition from outdated technologies by utilizing nanomaterials to harness energy from across the electromagnetic spectrum, enabling electrified and solar-based technologies. The last decade was marked by tremendous improvements in nanomaterial design, synthesis, characterization, and assessment of material properties. Realizing the benefits of these advances requires placing greater attention on embedding nanomaterials onto and into surfaces within reactors and applying external energy sources. This will allow nanomaterial-based processes to replace Victorian-aged, chemical intensive water treatment technologies.