Novel air filtration with activated aerogels for VOC and odor removal

Overview

This research proposes a novel air filtration approach that integrates photocatalysis with functionalized aerogel materials to effectively treat odors, chemicals, and volatile organic compounds (VOCs) in conventional HEPA filtration systems. By applying optimized metal coatings such as titanium dioxide (TiO2) and copper (Cu) onto highly porous aerogel substrates, the technology enables light-driven degradation of airborne contaminants that standard HEPA filters cannot address. The solution targets indoor air quality improvement across residential, commercial, healthcare, and industrial environments where chemical odors and VOC exposure are concerns.

Technical specifications

Core technology components:

• Aerogel substrate with over 90% porosity, providing an ideal high-surface-area platform for photocatalytic activation
• Metal coatings applied via sputter-coating, including TiO2, Cu, and other metal mixtures optimized for photocatalytic degradation
• Optical properties of aerogels that facilitate effective light penetration and photocatalysis throughout the material structure
• Integration compatibility with existing HEPA filtration infrastructure, enabling retrofit or new-system deployment

Research and modeling capabilities:

• Computational fluid dynamics modeling of aerosols in indoor environments
• Machine learning-driven design optimization for coating recipes and material structure
• Mathematical modeling of sputter-coating deposition on internal aerogel structures
• Photocatalysis expertise for degrading chemical and biological contaminants

Targeted performance outcomes:

• Degradation of odors, chemicals, and VOCs in air streams
• Pathogen inactivation (with Cu coatings offering anti-pathogenic properties)
• Enhanced filtration beyond particulate capture to include chemical and biological treatment

Technology readiness level

The technology is currently at an early research and proof-of-concept stage. Aerogel materials have been fabricated in the laboratory, and a computational model of the internal structure has been developed to simulate sputter-coating deposition of activation materials. Future validation will involve a six-month proof-of-concept study testing different metal coatings in a chamber device designed to replicate HEPA filtration air-flow conditions. Copper coatings will be evaluated first due to their anti-pathogenic properties. Additional studies will be required to optimize coating thickness, material properties, and photocatalytic performance before commercial deployment. The underlying photocatalysis approach is well established, while the integration with aerogel substrates and specific metal coating formulations represent novel contributions requiring further development and validation.