Functionalized surfaces for the destruction of pathogens and organics
| DWPI Title: Functionalized component used for capture and/or photocatalytic destruction of pathogens and organics, comprises substrate having surface, high charge density binding component, cationic metal, and photocatalyst bound to the component |
| Abstract: The disclosure is directed to a surface having a binding component applied thereto for the adsorption or capture of pathogens and organic molecules or materials. The surface may be a component of a porous or nonporous substrate. The binding component may also bind a photocatalyst to the surface for photocatalytic destruction of the captured pathogens and organic molecules or materials. |
| Use: The functionalized component is useful for capture and/or photocatalytic destruction of pathogens and organics. |
| Advantage: The functionalized component: utilizes the high cationic charge that adsorbs the microorganisms by chemical affinity (rather than settling or some other physical mechanism); provides the microorganism and/or organics destruction that is manually initiated by allowing for controlled cleaning to minimize biofouling, increase the lifetime of filtration media, decrease operation costs, increase efficiency of water treatment processes, and gain public confidence, thus ensuring a viable future for wastewater treatment technologies and mitigating the worldwide growing water crisis; and utilizes the photocatalyst that exhibits geometry conducive to surface coating, chemistry conducive to surface attachment, potent photocatalytic activity, compatibility with functionalities that adhere microbiological contaminants, and economy and simplicity. |
| Novelty: Functionalized component comprises: a substrate having a surface; a high charge density binding component attached to the surface and capable of binding a microorganism or organic molecule or organic material; a cationic metal added to the high charge density binding component to form a high charge density binding component having metal-based cations and/or polycations; and a photocatalyst bound to the high charge density binding component, where the photocatalyst comprises a delaminated sodium nonatitanate and the high charge density binding component comprises aluminum or gallium polycationic clusters. |
| Filed: 12/19/2012 |
| Application Number: US13720643A |
| Tech ID: SD 11933.1 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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