Near infrared photocatalyst based on TiO2-coated gold nanoparticles

Invention Summary:

Nanoparticles such as gold nanospheres, nanorods and nanostars are a promising additive to titanium dioxide (TiO2) to increase photocatalytic efficiency. However, conventional TiO2-nanoparticles drive photocatalytic reaction only by UV light. There is a need for materials with enhanced photocatalytic capacity under visible or infrared light in addition to UV.


Rutgers researchers have developed a solution method to synthesize crystalline TiO2-coated gold nanostars at low-temperature, with the preservation of the nanostars delicate morphology.  Under visible-near infrared illumination, TiO2-coated gold nanostars exhibited a significant increase in hydrogen production from water reduction compared to standard TiO2-coated nanoparticles and uncoated nanostars. This optimized TiO2-coated gold nanostar, when photoexcited with broad spectrum radiation, was capable of evolving >2500 μmol H2 per g of catalyst in 20 min, which is 4x more efficient than commercially available TiO2 catalysts.



- High photocatalytic efficiency

- Low temperature synthesis

- Readily available materials for synthesis

Market Applications:

- Photocatalyst

- Solar and renewable energy

- Optical Antennas

- Water splitting

- Biosensor


Intellectual Property & Development Status:
Patent pending. Available for licensing and/or research collaboration.



Atta et al. Chem, 2018,4,2140-2153.

Atta et al.  Faraday Discuss., 2019,214,341-351.

Patent Information:
For Information, Contact:
Shu Wang
Licensing Manager
Rutgers University
Photonics and photovoltaics